Taken from scrap I had around the house.
Available from any hardware store… look in their cutting section for scrap pieces being liquidated.
If you have construction sites nearby, go ask for scraps there too.
Finally, there are more and more EcoCenters popping up and they tend to have tons… literally tons of scrap materials to paint on.
You can throw any kind of paint you have around the house. This is a great and creative way of using old materials up. Get messy, get crazy. Have Fun.
if you want to challenge yourself and have some fun with materials… Go wild!