When I have lots of crayon bits, I melt them down in cupcake papers to make "crazy crayons." I put similar colors together (or
warm colors, cool colors, etc) in a cupcake paper, place them in a muffin tin, melt for about 2 min or so in the toaster oven.
Let cool (I put mine in the freezer), peel off the paper, and voila! Crazy crayons. The kids love them, especially the K-1s.
They think they look like Reece's peanut butter cups. Better not do the browns, or someone might take a bite!
(who is doing scrap paper collages right now! making "shapes that move" as in dancing forms, like Matisse.)