We made background stamps in class last week. I had been promising to show my class how for ages, finally I got the supplies together with the help of one of my students. It is actually really simple, some craft foam, waterproof glue and wood for the back.
I glued down some undercollage and then used black gesso with the diagonal stripes stamp.
Red then blue acrylic paint over the top.
It was a hassle to cut out the circles, but I think this stamp is my favourite.
Red over the purple paint. Then I painted the stamp with cerulean blue mixed with a little white and stamped again.
The stamp made with triangles.
And finally the small checkerboard stamp.