Step 1: Supplies
* Used shotgun shells (That's kind of a given) Make sure that the plastic is intact and the metal isn't completely rusty, because if it is, then it could break.
* Candle wax. You can use the big blocks of it, or tea lights, or old candles. Whatever you want.
* Double boiler. I use one that is originally meant for melting chocolate, but I find it more useful for this. You can make one by putting a tin can in water in a pot, or you can buy one.
* Some kind of colorant. You can use another candle, or crayons, or that coloring stuff that's meant for candles.
* Candle wick
* X-acto knife
* A stirring utensil
Make sure you put something down for when you are pouring the wax, otherwise it could get everywhere.
Step 2: I'm melting!
Once the wax starts to melt, stir it a bit.
Step 3: Preparing the shells
Your shotgun shells may be dirty. A couple of mine were. You're going to want to make sure they don't have any dirt or anything in them, because that would look bad on the outside of a candle.
Depending on how long the wick you have is, you can either put it in now or wait until after you pour the wax. I'm waiting until after.