Instructables
Picture of Plastic Soda Bottle Lid Capsule
A couple of months ago I stumbled upon a discussion board that talked about and showed a small, lightweight reusable container made out of the necks and lids of two plastic soda bottles.  I haven't been able to find that same post ever since, but remember enough about it to want to give it a shot for myself.

I started with two identical plastic soda bottles to make sure that they would match in size. I cut the necks of the bottles off using a small hacksaw making sure that I kept the large flange that would be used to glue the two necks together later.
 
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Step 1: Cut off the necks

Picture of Cut off the necks
I used a vice to hold the bottles still while I cut through them. If you don't have a vice you can still do the same thing by hand,but be very careful and take your time.

Once I had cut off the neck of each bottle I used a flat file to smooth down the rough saw marks and left over plastic.  The idea is to remove all the rough edges until you have a flat surface level with the large flange as this will be where you will glue the two pieces together.

Step 2: Smooth the edges to be glued

Picture of Smooth the edges to be glued
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Once I had filed the rough edges down and made sure that the edges were level. I used a little 600 grit sandpaper to smooth the edges a little more than what I was able to do with the file.

Here are the two sections of bottle necks ready to be glued together. I made sure that they were both clean and free from any rough edges that would stop good contact.
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avonborowsky made it!1 month ago

This is a great idea!

I will cut all bottles I see in my front!

It is cool because you can make it with various kinds of bottles to make different models. And afters you can make a cute customization.

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I just melted the two ends together with a lighter

Goog idea! I will try this.

kalvin3594 months ago
i made one and used it to store my weed
dputra65 months ago
This is great, already made my own, I use juice bottle cap instead of soda for larger capacity. Wrap it with fishing line (snare) and fill it with hooks, sinker, matches, xacto blade, baby pin, and bandaid . then throw it in to my emergency bag . Thanks.
Is there a way to make it longer say ... for matches??
cut the neck longer,or cut the match so it fits
nic nak1 year ago
I agree that this would make a great geocaching log container. 35mm film pots used to be perfect, but who buys those anymore?
Reiff nic nak1 year ago
Yeah, I have found a geocache in that before, had a magnet inside so it attached to a guardrail. Also you can buy film canisters on ebay specifically meant for geocaching.
handprints1 year ago
This is so cool! I am running to rescue stuff from our recycle bin!
Schmidty162 years ago
here is mine that ive had for a while befor and after it is made out of a gaterraid bottle i am going to make an instructable on
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Tofu2 years ago
Not going to read all 107 comments; to see if someone already mentioned this or not; but this would be a great small geocaching log container.

Great 'ible!
Galonii Tofu2 years ago
They work great for geocaches! But instead of cutting the bottles at the neck and glueing them together we cut them down almost the the extra neck piece put some gorilla glue around the lip and snap another bottle cap to the other end, then I glue some of those super magnets inside, and there you go a perfect micro geocache thats water tight!
lime3D Galonii2 years ago
Why go through all that work? Just use an 8 oz water bottle they way it is, no modification necessary. (Except for the magnets.)

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bfgreen (author)  Tofu2 years ago
Over 13,000 views and more than 100 comments - this was supposed to be kept between the few of us!
brownie43212 years ago
I have made this very item with one change. I cut a small section from the side of the bottle and glued it into the middle of the two sections thereby making a two sectioned container. I have several of them and use differing colored caps or plastic to differentiate at-a-glance. They can contain medications, spices, small parts. I have some to carry travel fishing tackle like weights and hooks. Very handy. Thanks for posting.
jedikid67772 years ago
is there an easier way to file please reply asap P.S im new on this site
Get a dremel tool or even a cheapie one.
After makng mine, i wrapped the center portions with fishing line and added a few hooks, swivels and sinkers to make it useful if i ever wanna do some quick fishing! the container is already a bobber! Thanks for this
17hmr2432 years ago
thanks ill have to use this now
DivaB2 years ago
We've always made a ton of these in our group, but we glue plastic in the middle section so that each side is divided. Each side holds a different spice for camp cooking.
bigfatton2 years ago
Awesome instructable, I've made 2 now and I think they're soo cool. My only concern is that I noticed on the krazy glue bottle, it says not to use it on Polyethylene, which isn't that what Soda Bottles are made of? PET? anyways, it worked regardless. Also, has anyone thought to use heat shrink tubing where the necks meet to ensure water-tightness? I've never really worked with the stuff, but it seemed like a neat idea.
freeza362 years ago
i am making one right now
sppeart2 years ago
Great idea!
I might put some useful return info inside and fasten one of these to my dog's collar. He's got an ID tag - but there would be room for so much more in a rolled-up note tucked into one of these little capsules. Phone numbers, email address(es), any medication he needs, 'Reward if found', a picture of the kids crying their little hearts out... whatever. :)
Ketzer2 years ago
http://www.capsandpreforms.com/

I'll just leave this here.
bfgreen (author)  Ketzer2 years ago
That looks great, if I wanted to buy them by the 100,000. What an annoying website - no pricing?
Yes the site is very,very annoying to get the price you have to email the company. stupid.
TheMaker8882 years ago
WaterProof i presume ?
bfgreen (author)  TheMaker8882 years ago
You presume correctly sir, else what is the point?
Rainh2o2 years ago
Could use a dremel tool to cut the bottles as well...
bfgreen (author)  Rainh2o2 years ago
Who doesn't have a Dremel? Of course, it goes without saying :)
robot+more2 years ago
this is a cool instructable i did this but instead with two Gatorade bottles and it is about twice the size.
bfgreen (author)  robot+more2 years ago
I love making these with Gatorade bottles.
rtnatividad2 years ago
If there's a hose attachment that's the right size and design to screw onto the threaded neck of a soda bottle this would be PERFECT for making my own water reservoir for my Super Soaker Bottle Blitz :O
bfgreen (author)  rtnatividad2 years ago
Oh man you've opened up a whole other use for this! Super Soakers, yes!
This would make a good water tight pill container or something. So many things this can do we haven't discovered yet! Maybe you can roll up your bills and make this a wallet. A water proof wallet...
it probabley would work as a wallet, but it would need to be bigger, because you would have to fold the bills pretty small. so i might just brain storm to think of a slightley bigger version, but still make it pocket sized.
Now you are talking. When I was young in Military Leadership school they had us practice brainstorming. It was along these lines of taking something strange and giving ideas on what to use it for. No laughing at each others ideas, just idea and write it down. It was just amazing how much we came up with with all of us giving ideas fast and furiously. A waterproof wallet is an excellent idea, easy to store as well.
bfgreen (author)  GuyWitheGlasses2 years ago
There's a whole sub-thread below about using this as a pill storage container. That's what I originally made mine for.
cmarsch2 years ago
Made my own and I use it for EVERYTHING.... that can fit in it. Thank you.
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