Picture of Knobby All Terrain Rubber Wallet with Optional Smack-lights
done open wallet mtb.jpg
this tire would make a cool wallet.jpg
One of my neighbors put a pile of mtb tires out on the street for garbage pick up. Naturally, my hunter-gatherer instincts took over and I dragged them all back to my lair to gloat over. It's possible that I have too many old bikes (nevah!). May as well have too many tires as well. Especially nice ones. And I truly dig the tread patterns and want to make everything out of them. I was working on a wallet design, and then the contest came up and gave me the kick I needed to make it into an instructable.

yeah, so anyway...
MTB Tires are cool. And this knobby thing lights up when you drop it. If you're like me, you always have a few extra tires around that you can't possibly throw away, because well, they're so cool. Now you can have a wallet that is as cool as a knobby mountain bike tire. And if you go for the optional drop sensor... If you drop your wallet, the lights fire off like, um i dunno what. some tiny french polizei car inside your wallet your something. You or a person with you is bound to notice and see where your cool wallet went, and if you're in a crowded nightclub or whatever, it lights up every time someone kicks it or steps on it.
Interestingly, the lights also go off if you smack your friend's head with it. You can't beat that for entertainment.

video of the cr-azeee lights:

Step 1: Materials

Picture of Materials
Old MTB tire.
MTB (large) Inner tube.
Pop-rivets and riveter. Or substitute your favorite fastener method.
Something sharp to puncture with.
A hole punch. Or do without it.

Tommi Potx4 years ago
Mighty fine Instructable! This has inspired my creativity, for instructables yet to come. Thanks for giving me a reason to stash all those old tires!
ilpug4 years ago
very well done. funny and informative. amazing wallet. Although i don't plant to make the wallet (i already have about a dozen various DIY wallets I've made lying around) the impact sensors from shoes have inspired me to all kinds of stuff. I only have one thing to say. did you use backing washers on the rivets? it didnt look like it in the pictures, or if you did, I couldn't tell. Woulndt that make it possible for the rivets to pull through?
ineluctable (author)  ilpug4 years ago
ilpug, with this particular tire used the rubber is so hard that actually retained the rivets properly and they haven't popped through. this was a bonus because I wanted to keep the weight and bulk down. putting the rivet in the thick part of the tread rather than the groove helps. glad you were inspired by the impact light re-claim. would love to see what kind apps you've come up with for them.
Cool then, that is an added bonus. nicely done.
indelible8 years ago
Awesome I live in a tree and drop my shit all the time. This is exactly what I need, if only I knew somebody handy enough to make me one?
ilpug indelible4 years ago
this might be a slightly odd question, but why do you live in a tree?
you live in a tree and have a computer... awesome.. weird but awesome
Tommi Potx4 years ago
Me like!! Must make!!
hello! i would first of all like to say this is the coolest wallet i have ever seen. i am definitely planning to make due to various local bike stores throwing away old tires, but i still need to acquire a rivet gun and rivets. what is the cheapest brand and what size rivets do you use? i cannot wait to make this!
amarxyz5 years ago
5* for the comedy!
you shold make one in the form of an i pod touch or i phone case.
komecake5 years ago
  LOL. This is cool. Question though... since you're smacking it on the table to make them light up, and when on feet you have all of that weight on your side to make them light up, would it dropping to the floor actually be enough pressure to make the lights go off?
lynks6 years ago
If you use grommets you can attach a chain for that real "biker" look.
rattyrain7 years ago
Nice... ...and Pan's Labyrinth was pretty strange...
Strange may be a bit of an understatement...
hey, i'm making one of these now, have you seen the innertube wallet instructable? i started making that and thought it would look awsum to cut up a tire as an outer.
ineluctable (author)  drummonkey927 years ago
great! i have, and i think they're a perfect match. post pics or make instructable of it. was thinking snaps might be a good closure fastener, or the magnetic method, which other instructablers claim doesn't erase credit cards.
like i said, i'm in the process of doing it now, the curve put in the innertube is proving to make it more difficult than i had thought. i will post pics when it's finished though :) i probably won't make a full instructable on it since it's mainly just combining to people's ideas, might ask if the author of the other wallet would be up for collaborating as i'm not using a sewing machine for mine. if i do i will make sure to add a link to this page.
This is a great idea. Very creative, and, (heh) quite 'stylish'.

It looks good, and is something I would consider making.

idea for even more improvement: add sound to it and a (if you know how to make one) remote controlled low-voltage flat capacitor taser in case someone else decides to pick it up. or if your friends think it would be a good idea to hide your wallet.
Very cool looking. This would make a great impact resistant Ipod case too. I may have to make one. Thanks!
eeeXsmart7 years ago
awesome idea!! i probably have some old tires laying around ;)
bedbugg27 years ago
oh my freaking god this is too awesome!!!! this will make a great wallet for when dh mtbing...if it falls out your pocket it doesnt have a chance of loosing its grip in the dirt
temme one thing how do i cut da tire if it is not avaliable originally cut????
and i had the 99th rating!
carver7 years ago
This is AWESOME. I got to make one of these. like i said AWESOME AWESOME AWESOME AWESOME!!!!
ineluctable (author)  carver7 years ago
Thanks! I've found that some tires can be a lot tougher to mold to your wishes than others. I warn you, this can be a challenging project. I think the design could be improved by making it more complicated. Like really cutting up the tire and putting it on more of a frame. For this instructable I wanted to keep it really simple, and the choice of tire made a big difference. Look in the comments below for some good design suggestions people have made...
Very cool !! Great job.
Dantex8 years ago
this is great!!!
Remote Man8 years ago
Excellent!!!!!!! 9/10!!!
Coulro8 years ago
WOW, man ... Wow. That looks pretty bad ass, I need to try that when I get a chance. Excellent job, very creative!
John Smith8 years ago
How can I keep the tire flat? The sidewall is thick, and it won't stay flat.
Oh yeah, it's kevlar reinforced, if that makes a difference.
ineluctable (author)  John Smith8 years ago
not sure if it's the kevlar or not. hard to say w/o seeing it. It's true that some tires have really thick, springy sidewalls and may require a different design. I've been thinking that I'd like to add to the design so that it will get really flat with more tire types. My thought is to add light rigid rectanglular plates to the inside and rivet them in. these could be little stiff pieces of plastic or aluminum, and they would go behind the inner tube sleeves, right up against the inside of the tire. Really I think the best might be to combine my design with the magnetic closure of the 'bitchin inner tube wallet': http://www.instructables.com/id/EWHFR7GF0X1RVBY/
and put rivets (or bolts or thick thread or whatever you choose) all the way thru the metal plate and the tread. that way the wallet gets nice and flattened and has that great mag-closure. i thought about something along these lines originally, but didn't want the weight, and assumed magnets would be too dangerous to keep near mag-striped cards. i haven't played with hard drive magnets, but I know there are some nice flat rectangular neodymiums for sale on line.
The mtb wallet is a pretty challenging design. it definitely gets easier after making one or two that you just assume won't turn out well, just to give yourself a feel for the medium and the particular tire. It's tricky, but I hope you can figure out a design you like.

Another thought is maybe try stitching it together. I thought about using a 'speedy stitching tool' (a sewing awl) rather than rivets. they're super handy:
I don't have a picture, but I can see small fibers funning diagonal to the tread. Right now, I rubber banded the basic shape, and I put it under a ATV, where i'ts sitting now. I'll get back to you.
Okay, I took it out from under the ATV, and it did nothing. Anyway, I ended up sewing on pouches made of innertube with SMALL wire using pliers, a needle, and wax (for lubrication). It looks okay, but yours is better. What size innertube did you use?
If you look closely, you can see the wires in pics 3,5, and 6. In picture 5, you can see the Kevlar fibers runnung above the purple. Also in pics 4 and 5 you can see the purple additive that is supposed to stop leaking air.
ineluctable (author)  John Smith8 years ago
Wow, Nice!! that turned out really cool. It looks like a perfect candidate to add the magnetic closure design of the 'bitchin inner tube wallet'. i like the idea to use snaps as well. nice use of the inner tube to make the pockets. thanks for uploading all the pics!
jmo938 years ago
hey i love the wallet, and congratulations on winning the contest. I don't have a riveter, and was wondering if you could suggest a different way of fastening.
ineluctable (author)  jmo938 years ago
thanks! without a riveter, i suggest sewing with a 'speedy stitcher' or just a thick needle, or even possibly a sewing machine (might have to be industrial one, though). or, check out john smith's design here in the comments, sewn together with wire. another thing that comes to mind is metal grommets. these come in a little kit, and are essentially rivets that you hammer together by hand. very cool. also the riveter is a pretty cheap little hand tool as i recall, and really useful, should you be considering getting one.
Yo Guys... Might be a good call to bore a hole through both bits, and use a small electronics cable tie to hold the pieces together. Once you clip the extraneous length off the cable tie, you'll need to sand off the rough edges so it doesn't offer a hand- or pocket- or money-ripping burr. Blue skies love Roy
Another option would be to replace the smack LEDs with a programmable soundchip. With changeable phrases that go off when you smack it. Kind of like ring tones ;) Example: "Ziggy" from Quantum Leap you smack it and it whines to give up the money...
Tierra8 years ago
hehe could come back and bite your ass though, what if someone noticed because of the lights and then they stole it, when otherwise they might not notice it? But still good idea, especially for hitting people with
acidrain698 years ago
Awesome! I am so building this.

Recommendation: get some of those super strong neodyium magnets from a dead hard drive, and mount them at the ends under the rubber, so when you close it, they snap together and hold it all shut. Don't get them too close to the CC mag strips tho. They are strong, but only at short distances. Hmm. Maybe a button snap would be better. Or maybe put a piece of metal on one side, where the cards will be, and the magnet on the other side.
Sounds Like a good why to erase your credit cards!! I like the the snap Idea better. Good Idea other wise!
ineluctable (author)  acidrain698 years ago
great ideas. i'd love to see it.
LasVegas8 years ago
Congratulations on the win! You deserved it! Great Instructable & unique design.
ineluctable (author)  LasVegas8 years ago
thanks a lot. wow. how cool. I'm a little shocked, in a gratified good way. thanks vegas, and thanks to everyone for the feedback, the votes, and entering all the great wallet designs! I learned that it can take a significant effort to instructable-ize something thoroughly and clearly. But especially if the instructable subject is something you're really into and care about, it's totally worth it.
j626no8 years ago
thats awesome! i just got a motorcycle and and looing for a new walet. this thing would be great only im looking for something with a chain. think that mayb ea motorcycle chain would be too much?lol. but yeah, looks awesome. oh yeah, does it hold cash? thanks
rwin8 years ago
drop sensor is good idea!!
themostbob8 years ago
Hey ineluctable - I just noticed when I was checking out the competition that your project, while it shows up on a search for "wallet challenge" because of the keyword you used, has not actually been added to the Wallet Challenge group. It's tagged with the keyword, but not part of the official group. I'm new here and not sure if others can add it for you, but it should be a matter of clicking a "add this project to a group" link in the Groups sidebar on the left. Excellent wallet by the way. As far as I can tell, I'm currently winning the challenge, so I'm probably shooting myself in the foot by commenting here, but I needed to let you know so you could be eligible for the prizes. I wouldn't want to win on a technicality if yours got more votes. Best, Bob
ineluctable (author)  themostbob8 years ago
you are a man of honor. I added it to the group before the deadline. most awesome of you. Thanks.
edukdu8 years ago
very cool wallet...different from everything i have saw there... See ya Edu Gomes
gdhenson8 years ago
You've got my vote.
iterator8 years ago
Silas8 years ago
Just voted on your wallet, it's awesome.. Didn't participate in this contest myself, as I'm going for the Laser Cutte contest, and need all my spare time for that :-P
indelible8 years ago
We have a lot of squirrels round these parts. Wonder if you couldn't take one O them their squirrel tails and and do bout the same thing?
Zujus8 years ago
Coolest wallet i ever seen! ;) more better then my one :)
sam noyoun8 years ago
Man, this does look good... You truly deserve to win this competition!
ineluctable (author)  sam noyoun8 years ago
big thanks. I've truly enjoyed your instructables. keep on.
twisted8 years ago
looks great, definetally my pic for contest winner.
you get a big 'ole "+" from me!

check out my entry!
My wallet
ineluctable (author)  twisted8 years ago
Not only is this bad ass AND sensorily pleasing but it beats a tire fire any day. And rather than looking like an idiot while you dirty yourself on the party room floor chasing an invisible entity someone will call 'dork' you will look like the only one with enough sense to pay attention to the pretty lights. i want one.
Sweet... Nicely done. I'm also incorporating "smack lights" into my ultimate wallet (from a Halloween toy), but my design idea is still in progress. Hopefully it'll come out looking as nice as yours ;)
ineluctable (author)  FrenchCrawler8 years ago
cool. I love cannibalizing existing stuff. can't wait to see it. what kind of toy? yes do put it up on the site.
ineluctable (author) 8 years ago
Wow, thanks all! I really appreciate the comments. and ratings too, wow!
nagutron8 years ago
It's bulky, but it looks so farking cool that I'd lug it around, anyway. I just rated you up. Nice, detailed Instructable, btw.
brianf258 years ago
Thats the best bike tire wallet I've seen so far today..
abbabibble28 years ago
now this one i might just have to make for the guys down at the bike shop!