Baking Candles work fabulously in a crock pot!  Just put about an inch of hot water in the bottom of the crock and set the candle (still in the aluminum container) in the water ….you can have it on all day without having to worry about overheating the candle — I have had a Chocolate Pie Candle going for two days in a crock pot in my living room as a test — and it’s just smelling better and better!