I have seen recycled crayons like this on Etsy, though making them yourself for free is so easy and fun. If you're like me, then you have mountains of well-used and broken crayons lying around.
Just peel the paper off the crayons and break them up. Spray a muffin tin with cooking spray and then arrange the broken crayons into the tins however you like. Mix and match to create new colors.
Preheat your oven to 275 degrees and melt for 7-8 minutes. Once melted, CAREFULLY remove them from the oven (you do not want to clean up melted crayon wax).
If you'd like, take a tooth pick and swirl the colors a bit. Allow to cool before removing from the tin. Some of the colors look like they completely mixed, though you will have a surprise when you pop them out. Getting them out wasn't too hard, though some needed a little coaxing.
Aren't those the coolest? My boys were ooohing and ahhing every time one popped out.
I'd say these crayons worked better for the big coloring pages like these ones, since without a pointed end like regular crayons, your accuracy isn't as good. The boys had a lot of fun coloring with them and loved seeing how the colors mixed. We will definitely be doing this again.