melted crayon art 1.get fairly good size canvas so your crayons have room to drip. 2. cut out size of heart you want with scrap book paper. 3. glue heart down and start outlining the heart with the bottom end of crayons. i used super glue to make sure they stayed. 4. take blow dryer and start melting. turn the canvas while you melt so your drips go the direction you want them to go.