Next, cut out the circle with a bandsaw or scrollsaw. We left a little extra material on the outside of the line and removed the material up to the line with the disk sander. You can achieve surprisingly round pieces with some patience and a careful eye. Next you can make a tangential cut from the outside diameter to the inside diameter. Try to end up at the top of the inner circle as shown in the photo on the right. Unless you are using a very thin blade, the thickness of the kerf seems to work perfectly for stamps.