I loved this project! I found it on another blog. I bought a pack of Crayola crayons. It was an 18 pack,but depending on the size of your canvas I would buy a pack of 64. I hot glued them onto my canvas according to color.
I put my hairdryer on hot on high. I held it over top of the crayons pointing down. Be sure to do this outside with lots of newspaper. Its a little messy!