Bet you THOUGHT you'd heard it all, but these are Pam and mine's shot glasses I made from the inner skirts of improperly glazewelded Freddys. I found them in the wild as such, years ago, and brought 'em home and chucked them in the old drill press as to meet a stationary diamond blade at the base, in order to smooth and level the bases. They hold a perfectly measured jigger as they are known, at the point just above the the threads. Nothing like enjoying a little red eye from a 1902 shot glass! Talk about a second life!!!!