Essentially, you affix crayons to the top of a canvas, and blast them with a hair dryer. Watch as the colors bleed down the canvas, creating a beautiful, colorful mess! I can imagine this being a great project to hang in a child's room. This is very cool!
Hot glue a row of colorful crayons to the top of a canvas. Then take a blow dryer and turn it to hot on high. Not long after you set the hair dryer by the crayons they will start to get shiny and then the wax will melt!