Never lose those pesky keys again! This Instructable will teach you how to make a simple and stylish glow fob that can easily be attached to your keys or anything else you may want to keep track of more efficiently in the dark.

I’m the type of person that misplaces everything, keys, pocket knives, wallets, glasses, cell phones; nothing is safe once I’ve laid my hands on it.  After losing my keys for the millionth time I decided I needed to do something about it.  For a while I tried one of those gadgets that beeps loudly when you whistle allowing you to home in on the location of your keys, the problem with that was that it would go off at any loud noise and after it decided to go off several times during class I decided it was time to find a better solution.  What I came up with was a simple yet effective glow in the dark fob.  Now I know what some of you are thinking, “What use is a glow in the dark fob when I’m trying to find my key’s during the day?” and the simple answer is that it isn’t very much use at all, but there have been many times when I misplaced something during the day, searched for it without any luck, and found it by the bright glow of the fob once it got dark.
So for those of you out there who share my inability to keep track of things please feel free to read on and learn how to make a glow in the dark fob that is both functional and stylish.

Step 1: Materials & Tools

20 minute epoxy: You need at least 20 minutes of working time, instant and 5 minute epoxy sets up way to fast.

Glow Powder: There are many colors to choose from, however, I suggest V10 Green it glows the brightest and longest.  Glow powder can be purchased on Amazon or Ebay, I bought a ½ ounce for around 8 dollars.

¼” outside diameter flexible clear plastic tubing: can be purchase very inexpensively at any hardware store. 1 foot of tubing should be more than enough.

Metal or plastic tubing that will snuggly fit the outside diameter of the rubber tubing. (I used an aluminum arrow that I got for free from the local archery shop).

Spring rings (key rings): you probably have some lying around the house.


Pipe cutter (can be purchased an any home improvement store for under 5 dollars).

Xacto knife or other sharp blade.

6ml syringe (can be purchased for under a dollar at tractor supply).

Sand paper (220 grit would be fine). The blue pencil length tool in the picture is my sand paper, it's called a sanding stick and can be purchased from jewelry supply companies like Rio Grande.

Jeweler’s files (not necessary but helpful).

Power drill and 3/32” or 1/8” drill bit.

Power sander (not necessary but helpful).

Something to thoroughly mix epoxy with, (I use an old sculpting tool, but a tooth pick or popsicle stick would work fine).
Wax paper or small disposable container to mix epoxy in.
kipkay stole your idea! of was it the other way around?
Yep he totally stole it! Didn't even give credit, that's kind of cheap of him...
<p>astonish me!!</p>
I made a big glow stick liked this one except I molded my epoxy mix into a half inch smoothie straw and later cut the straw off and put a bit of cord on it.
can't believe Kipkay tile your idea?
<p>I love this instructable thank you so much</p>
<p>That is really nice! Good work!</p>
Great suggestion 17hmr243 mixing the glow powder into one part of the epoxy before mixing the two together should give you plenty of working time. I suggested 20 minute epoxy because most people would not be familiar with the process and would therefore benefit from the extended working time. But once you're skilled you would absolutely be able to speed things up with quicker set time epoxy.
hmmm ummm 5min epoxy should work just add powder to 1 side mix then mix both sides still leaving you 5min to fill and dispense.
I just wonder why nobody till now did think about making this I think it is worth a patent
http://www.tecaccessories.com/TEC-A3-Glow-Fob <br> <br>i think somebody beat him to it :/
a quick alternative to using flexible tubing is to mix some of the glow powder with some clear acrylic resin and cast a tube in a drinking straw of the proper size, i made a glowstick for my T3 titanium glow fob from aqua blue pigment this way :D
Great Job! Going to make several!!
Nice 'ible. Like it!
That's really cool. How long does it stay lit?
The length of the glow depends a great deal on how long you allow it to &quot;charge up&quot;. the with the glow powder I used for mine I can get a pretty bright glow for around 2 hours and then it tapers off to a dim almost undetectable glow over the next 4 hours. Spokehedz makes a great point that it is all in the type of glow powder you use. the better the powder you buy the longer/stronger your glow effect will be. As I state in the Instructable I used V10 green powder which is the strongest and brightest of the available types of powder. However, not all V10 green powders are made equally, when you decide to buy, do your research and find a reputable buyer so that you get the best quality product for your money.
Thanks for your support everyone! If you like my Instructable please consider voting for it in the weekend projects contest.
Everyone please note that the better GITD powder you buy, the longer it will stay bright. You want expensive powder, but you also want to buy from a reliable source. Do your research before buying anything, to be sure.
definitely on my future todo list. Awesome!
Wow Makuna thats a great idea! What a smart solution, thank you :).
ahh this isnt tritium is it?
Nope. It doesnt glow by itself forever, but needs to be &quot;charged&quot; by ambient light and will get weaker over time (maybe 1-2h) if not &quot;recharged&quot; by light. <br> <br>Normally the glowing powder you can buy in almost every panting-shop is zinc sulfide. <br>Phosphoreszence is the thing you are looking for in this application here. <br> <br>Tritiumlights (Gaseous tritium light source) are a small glasstube filled with tritium surrounded with phosphor. The thing what happens there is Radiolumineszence (Beta-particles from the tritium hit the phosphor and make it glow). As a sidenote: If correctly made, those tritiumlights do NOT emit beta-partrticles because the get absorbed completely. But the brake-radiation from those beta-particles is r&ouml;ntgen... So those things emit a bit R&ouml;ntgen-radiation. With the Zinksulfide or every other Phosphoreszence-light thats not the case because you dont have any radiation-source whatsoever (If you dont count light as radiation). <br>Tritium --&gt; Not dangerous but not &quot;clean&quot; because of R&ouml;ntgenradiation <br>Zink sulfide --&gt; 100% save if not swallowed. <br> <br>
It seemed too thick to be tritium. I have a tint tiny item somewhat like yours but a more robust one would be nice.
Then you definitely should try this one. It seems really study and with the amount of powder you can fir in, you will have quite a good amount of light.
An easier way to mix the powder and epoxy is to only mix it into one of the parts of the epoxy and once mixed then add the other part. This should allow for faster cure epoxy then.
Thanks for all the support everyone, I'm glad so many of you enjoy the project! I hope to put out more interesting and creative instructables in the near future.
Great idea, and great job with the instructable. <br>A+
Great idea! This brings many projects with the same scope to mind. Thanks
Great idea! This brings many projects with the same scope to mind. Thanks
beautiful! very clever design!
Cool idea to encase it in resin and then again in a plastic-tube! Also to let it cure in a tube to be straight is a cool idea! The result is completely unbreakable! Nice! <br>
Pretty easy, very useful and can be cheap depending on what stuff you have lying around the house. Instructable clear and easy to understand with good pictures. Good job!
Cool, I like the way you cut the oval shape into the fob.
thats a great little project.
oh man I have to do this. nice job :)
nicely done.
This is a great idea! I've never heard of glowing powder before, now I need to find some :)
Nice! It looks pretty professional too!

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