The caps from beer bottles are frequently used in upcycled DIY projects, but they are more often seen in jewelry than in bottle cap candles. From the blog Francois et Moi, the bottle cap tea lights are an adapted version of the Craftaholics Anonymous tutorial.
The craft is quick to make and is an easy way to reuse any caps you have lying around. If you live in a frat house, they are also an easy way to turn things around and add some atmospheric ambiance. You can melt down old crayons for a colorful take or use paraffin wax. Using your favorite beer or glass bottle brands, these bottle cap candles are extremely easy to personalize.