cracycle 480 paperless crayons for melting projects and crafts - 12 vibrant colors - premium quality, for silicone molds - oven, microwave and double boiler compatible my fruit shack ** new release ** our crayons are premium quality, vibrant and smooth. paperless for hassle free projects! they melt great in the microwave, double boiler - or directly in your crayon molds inside the oven. <br> we’ve chosen bright colors, along with white. white can be used to make color shades lighter, adding an interesting effect to your crafts!