1) Peel the wrappers off - Also known as "making the crayons nakie", according to Abbie. Some of them came off easily, but others were quite difficult for the kids, and even for myself. Next time, I might try soaking the stubborn ones in water a few minutes. But, it was a calming activity, and an exercise in perseverance and like Jen pointed out, fine motor skills.
2) Put the crayon bits in an paper-lined muffin tin - This is the fun part, deciding which colors to mix. Try solid colors, tone-on-tone, or a random rainbow mix. I filled the tins up to about halfway, but if I did it again, I would do it to 3/4 because they melt down quite a bit.
3) Place pan in a 300* oven until completely melted - This only took about 7 minutes for us, but may take a few minutes longer if the tins are fuller.
4) Remove and let cool - You'll want to remove them from the oven very carefully to preserve the color swirls. Let them cool for a few hours before attempting to remove from liners.
5) Clear a space on the refrigerator door - For all your child's new artwork, of course! Abbie was amazed she could draw in rainbow colors, and has declared these to be magic crayons. Isaiah loves his giant yellow and orange crayon, as those are his favorite colors.
We'll definitely be doing this activity again. I've already put a baggie in the activity closet with "broken crayons" written on it to save little bits and pieces until we have enough. Let me know if you give it a try!