Grab a large foil roasting pan or a similar container and place it on your table. It will catch any wax drips and keep your space neat.
Select your favorite colors of crayons and then choose a color pattern. You can opt for a rainbow, ombré, or mix your favorite tones. Unwrap the paper from each crayon for a cleaner melt.
Line up the crayons across the top edge of your canvas with the tips pointing down. Use a hot glue gun to glue each one in place across the top portion of the canvas. Allow the glue to dry for approximately 10 minutes to ensure it stays in place during the melting process.
Stand your canvas up inside the foil pan, leaning against one side or propped gently on an easel or stack of books. Start the heat gun on the low setting to melt the crayons. If they are melting too slowly, you can go to the high setting on your heat gun. Keep the heat gun about 6 inches away and move it slowly from side to side. The wax will start to melt and flow onto the canvas. Continue refining the design until you’re satisfied with it. Let it cool for at least 15 minutes before handling.