Ella and I spent an hour or so this week re-purposing the broken crayons in her art box. The hardest part was getting the darn paper off the crayons. I have no idea how kids manage to get so many wrappers off on their own!
We broke the crayons up in to smaller pieces, put them in a silicone heart ice cube tray from IKEA and baked them at 250 degrees in the toaster oven. When the "silicone" container began to melt a bit, I realized that perhaps the ice cube tray really is JUST for ice cubes! I caught it before it melted all over my toaster oven, thank goodness. We let the crayons cool down and then put them in the freezer for about 30 minutes.
Ella is absolutely delighted with her "new" heart crayons (particularly when played with on a Sushi mat). I'm thinking these would make super cute party favors (with coloring books from the dollar store) for a birthday party!