Some things I want to try...
perfect for a scavenger hunt!
great way to recycle broken crayons
This project reminds me of how my Mom used to melt old crayons in tins and pour the colored wax into candy molds to make cute shaped crayons (like this story). I may try this with silicone ice molds, since they are heat proof - melt the crayons in the oven right in the mold instead of having to deal with pouring hot liquid wax.