i used to use energy drink cans but they dissipitated heat too fast wife came home from HL one day just beaming and handed me a sack inside were 6 candle molds 3 were 6" tall and the others were 9". i searched online and bought all the thermostats and heating bands(2) and made my own dipping pots i just switch the band to the pot i want to keep warm after nuking the plastic originally i pour it into that pot and the band and a little stirring every so often works just great and if i get done befoe i run out upside down it goes onto cookie sheets to cool and be reused next time. not much thought involved at all just research and a good starting point for us.