What You Will Need:
-- some crayons
-- a microwave-safe container
-- some foil (or any shaped mold you want to use)
Step 1: Make Some Rainbow Goo
Toss them in the microwave and turn it on high for about 3 minutes. It may take more or less time depending on the amount that you melt, how big your container is, etc. In case you hadn't guessed, this mixture is going to be hot when you microwave it, so be smart. You may need to stir the mix to make sure that it is all melting, but be careful not to over-stir or you will blend all of the colors together and just end up with some ugly green/black crayons.