Hi, Thanks for the site. I make candles out of old tea lights and they work OK, but... the candle wax doesn't actually -work- very well compared with 'commercial' candles. What I mean is that the re-used candles tend to burn very quickly and in a deep sinkhole in the center---IOW the wax on the sides around the wick don't burn very evenly. (Come to think of it, that's how tea lights work in the first place, so maybe this is natural for cheap-o candles.) Is there something one can -add- to the re-used wax to make them burn more evenly from side to side? For example, those 'Safety Candles' are great in this respect. How are they made? TIA, ---JC