After seeing all of the examples of crayons melting with a hot air gun or hair dryer I just had to try it out. I hot glued the crayons to a piece of cardboard, and stapled it to my canvas. I was not crazy about having the remains of melted crayons on the art. I added a row on top of the crayons, using white and yellow . You will see later that this was too much wax and color. I added an additional bead of hot glue at the top of the crayons to hold them in place. Not sure if they would fall off when standing upright. One art teacher suggested covering the area as this could make a mess. Made a covered area, suggesting a picture might be here. Cardboard stapled into this shape and rubber cemented to canvas. I stood the canvas upright, covered the table to protect from any wax splashing. And this is what I was left with….