The Ice Candle from Mathmos contains a mold that you fill with water and freeze for 8 hours. Then you place a tealight inside the ice mold, which sits in a stainless steel collar. As the candle burns, the ice thaws and melts into the base of the candle. Each time you use the 3 hour long burning candle, the ice will melt in a different way, showing off the candle light in a unique pattern. Fire and ice baby!