Here is a fun easy project I've been doing for a couple of years with Nathan's and my student's broken crayons! I used to just throw away broken crayons. Now I save them, Hoarders style, in a big yellow bucket.
When I am ready to make crayons, I have to peel the labels off. This takes awhile so I plop myself on the couch with a good movie or a date with the DVR, and get to work.
I then sort the crayons into like colors. I only do the rainbow colors. So all the shades of blue go into the blue pile. I then get out my crayon supplies: a small metal pot and small metal bowl, both from Goodwill. I also have a hot pad that I use just for crayons, a skewer to stir the melted wax, an old towel to set out on the counter to catch any drips, paper towels to wipe out the metal bowl, and plastic molds to pour the wax into. Some of the plastic molds I have are soap molds, some are chocolate molds, and some are lollipop molds. I've gotten them at Michaels, Joanns, and Amazon.com.
That's it! I made Super Hero crayons as part of the goodie bags for Nathan's birthday a couple of weeks ago. I plan to make crayons for the kids' table at my brother-in-law's wedding in May, and I always send my students home for the summer with some homemade crayons. This year they will be getting little paw prints, since we are the Mill Park Panthers. It'll be so cute!