Got a bunch of candles that are mostly used up? Throw them all into a crock and melt them down. Buy some candle wick from a craft store, or use cotton thread. Tie a stick onto the bottom and a dowel on the top. Set the wick up in a candle jar with the dowel tied part on top and the stick in the bottom. Pour the melted wax into the jar, let it cool, and viola! You have new candles!