For Malachy's Valentine's present, I decided to try a differant version of crayons. Instead of melting the crayons and pouring them in the molds I put the crayons in first. It has to be a mold that can be put in the oven. I used a tinfoil muffin pan.
First, peel the wrappers off the crayons, and break them into smaller peices. Sort them by colors and fill the cups. Using this method, the colors won't all melt and mix into one, so it is okay to mix it up. I made 6 crayons that are differant colors marbled together: red and pink, yellow and green, black and white, orange and brown, blue and purple, and one rainbow.
Put the pan in the oven. Be cure to check the crayons about every minute. You don't want them to melt too much. When you can see most of the crayons melted, turn the oven off.
The more you mix it up, the more the colors will blend together. Which is why I wait a little while for them to harden up before I take it out of the oven.
After they are cooled all the way, just pup them out of the cups. I put mine in the fridge for a little while first. You just want to make sure they are firm all the way through, otherwise you end up with dents and wonky shapes.
Here he is opening his crayons, I put them in a Spiderman toolbox for him.