This is an old post, but I'm reposting because I'll be making these for the kids' Valentine treat bags this year.
This is super easy and gives new life to crayon bits! Just take all your crayon bits, remove the paper, and arrange in your tins. You could get really creative with your color mixtures, but I made it pretty simple considering it was the first try.
Pop in the oven at about 200 degrees.. just keep an eye on them! Once melted, set out until dried and molded. Mine popped out easily once cooled, so you shouldn't have any problems.
These are perfect for little one's hands. I sprang for the Tadoodles a while back and trust me, they were not worth the money!
I've made these a few times, and I really recommend not using "cheap-o" crayons. They bubble and don't really color once molded.
I found the heart muffin tins at the dollar store, but your possibilities endless!