Homemade Stamps Here a are my homemade stamps. Some are made from craft foam. Some are cut out of my old flipflops. I punched some holes in craft foam although my hole funch wasn't very sharp and I had a hard time. Most are mounted on plastic milk jug caps. I tried making a stamp from some wood shapes I bought at the dollar store. The color of the wooden piece bleeds, but not a band stamp if you can keep it from warping. I like to use plastic lids for circles and cardsboard for a straight line. I keep track of how they print and what they are made of in a little notebook. It is very helpful. I'm hoping our next mailart project will be about homemade stamps so I can make more.:))