DIY car crayons! Buy a car mold, melt Crayola (new is best) crayons, pour into mold and cool. Combine similar colored crayons (light blue together, dark blue together). do not need to be exact matches, but the colors blend when you melt them. "don't be tempted to use the cute silicone molds they don't make them nice and shiny." She made the crayons in order of rainbow progression and didn't even need to clean the can between colors!