Glue crayons on a piece of white cardboard then take a blow dryer and melt the crayons. then draw a silhouette of what you want. I did this with my daughter a year ago...worked really well. I glued the crayons on first with craft glue....also have a drop sheet out as it can get abit messy!!!
Melted crayon art. My daughter loves princesses, but I didn't want her room too "Disney-ish" so I googled "princess silhouettes" and printed the pictures from my printer. I took the printed image and cut it out of contact paper. Next, on the canvases, I stuck down the image, hot glued the crayons to the top and melted the crayons all the way to the bottom, peeled off the contact paper and was left with the silhouette. I had to touch up some edges with white paint, but they turned out well.