Small scale threshing

The Mother Earth archives haven't been much help; I gather I should flail my spelt seed heads on a hard surface with something like a plastic baseball bat. Has somebody actually done this?
I have a big paper shopping bag full of seed heads, and I'm eyeing the garage floor after removing the almost dried garlic and doing a bit of cleaning. The Saturn is already complaining bitterly about having to live outdoors.
Gary Woods AKA K2AHC- PGP key on request, or at Zone 5/6 in upstate New York, 1420' elevation. NY WO G
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