How do you make your own? Get a canvas, some broken bits of crayons, a glue gun, and a hair dryer. You're set. I hot glue my crayons on strips of cardboard so I can control where the drips land, but you can easily glue right on the canvas. Heat with the hair dryer and you have art. The end that simple.
Here are some ideas that I have made.
Melted glitter crayons and an elephant
More melted glitter crayons and a whale
Rainbow and a pot of gold
fairy and a tree
tree we made for Christmas, I added a girl on a swing
this was also for christmas and was rain and I added a couple under an umbrella to this one
and finally this one was for christmas and I hot glued silk flowers to the top
Check out the ones available for purchase in my shop Bighead417 .