THESE ARE CRAYONS!! (Basically, take old, boring crayons and buy silicon letter trays) DIRECTIONS: first break the crayons up and put the pieces into the shapes on the trays. set the silicone trays on a cookie sheet for stability. preheat your oven to 250-ish. put sheet of trays into the warm oven and check at 10 minutes. when all the crayons pieces have become liquid....they are done! remove the sheet from the oven and let cool for at least an hour...or 3 or 4.