Peel the wrappers off of all of the crayons. Sort the crayons by color. Place broken crayon pieces inside each cavity of your mold.
Preheat your oven to 325F. Place the silicone mold on a sturdy cookie sheet. Melt the crayons in the preheated oven for 10-12 minutes until completely melted.
You can use a toothpick to ensure there are no lumps remaining in the crayons. Allow the crayons to cool completely before attempting to remove from the mold.