I didn't add instructions for this because you can find them almost anywhere by searching crayon art. But this second example was my idea...
This one I set the canvas flat on the floor. I held the crayon over the canvas. When I hit the crayon with the blowdryer the wax dripped onto the canvas. Then using a swirl motion with the toward the canvas.
Even more... My eldest daughter made a sample,
I love the energy she has captured!