I hit up a favorite thrift store, and with a half-off deal, got two used canvasses for $1.50. Sorry to "Nora" and the the artist with the illegible signature, your work has lived a full life. I painted over with white acrylic, then set stinky to work. It kept him busy for almost an hour!
Though we did have one mishap:
After they were completely covered with color, I decided to try a stencil technique. It looked like crap.