Crayons are amazing! Melt them and watchout for amazingcolor and effects your get. Just becareful on your method of melting your crayons. Hair dryers are great but use the parts to help concentrate the heat on a specific area then remove the part to help with spreading and blending the colors. Heat guns, please becareful! Heat guns are an effective method to concentrate the heat for melting but it does not help to spread out the crayon. Please note that I have personally started a couple small fires on art pieces due to the heat gun.