I had a senior moment and thought "What if"?
So, I found my old pneumatic spark plug holder and wanted to see if a shell holder might fit in the spark plug hole. It fits quite nicely. Now if someone who has more time than I can just figure what media might work best, it might speed up one step in case prep. I think the fine sand currently in it is too abrasive not to mention too dirty, kind of tried it and the base turned dull.
Slim