Here are four finished stamps. The largest one is about 4cm across. I roughly cut them out with a hacksaw then I smoothed off the edges with a small barrell-like grinding bit on my rotary tool. Then I mounted them on pieces of Japanese cypress. I also put a thin square of metal on the underside of each block. Next month I plan to get a 1 ton arbor press which I think will do a grand job of embossing with these stamps.