When I was a kid we would take all of the broken crayons we had and peel off the paper put them into hot water and mash them together to make Multi-Colored Crayon balls. I thought it was Genius! and then, I came across the Crayon-O-Saurus tutorial on Craftster.
Its a pretty simple tutorial.
Peel a bunch of crayons bust em up and throw them in an interesting baking tin.
Put it in the oven and let it cool and Tah-Freakin DAH. You got yourself a Dinosaur Crayon.