Made one years ago for a thin gasket need. Rear cover of a Playboy Magazine was just the right thickness.
I too have made a lot of gaskets over the years. A 4x4 cut off about four inches long and stand with the grain up, works good as a chopping block for hole punches or cartridge.
Like Jerry said, take a ball peen hammer and tap out the housing pattern, then cut it out with a sharp utility knife.
If you have a set of hole punches, all the better.
Don
Last edited by 2-Ton; 01/07/2021 12:52 AM.