|Image from Heidi Borchers ' stamp-making tutorial.|
Because they work very well with paint, and also on the Gelli Plate, I was looking for them, figuring I would have no problem locating them. Apparently, they are no longer popular for crafting because I searched high and low and had to finally purchase some on Ebay. (They can also be found on Etsy).
Guess I should treat my foam stamps very well, so they last a very long time!