I think I'm picturing that... I used to make a tenon and then remove it with a ring chuck... ended up with either a flat bottomed bowl or on that tended to roll..
While on a trip to the thrift store, (habit learned from Ken Vaughn), I saw a stack of wood bowls for sale... they had a bead around the bottom for a "foot" and looked nice.. I sort of copy that now... whenever the stock allows, I use a 2 1/8" forstner bit to cut the tenon in the bowl and then sort of bead it as I'm turning the bowl.. a little sanding on the ring chuck and it looks like it's decoration..
mac
Please remove splinters before emailing