I dropped my bar of carnauba wax on the floor and it broke into more pieces than Humpty Dumpty. Is there a way I can melt it down and pour it into a mold or should I just purchase another bar?
Yes, you can use a double boiler. (Hot pan of water with metal bowl on top, and put the wax in there... it will liquify. and you can pour it into a mold of some sort.
When I make my food safe wax formula I do this with beeswax, mineral oil and a little bit of carnuaba.