[hypoxia]

Richard, they could be punched out easily with the right machine.  I used some scrap metal, happened to be a piece of a ride height valve.  I doubt there is a large market but perhaps the boating industry would make it worthwhile.

Thanks Jack, I'm following your lead on show & tell.

I get concerned when the pump seal doesn't allow the armature to turn.  I wiggle it back & forth a little at a time to break it loose, always worried about causing damage to the seal.