Ted, I'm trying to learn the best way of doing things, so the bottom was as important as the top. I did the hard yards and to reverse the bowl for turning off the tenon and finishing I made a plywood faceplate disc with a recess for the bowl lip and 4 little tabs with screws to hold the rim down firmly. I'm learning.

Ray, at this stage I'm not going to get into pen turning. Bowls and lidded boxes etc are my main interest, aside from the scale model wheels and so on.
Also, it's pretty expensive for mandrels, presses and other odds and sods to get started pen turning, whereas I'd rather spend my extra $$ on more gouges etc right now. Got plenty of small scraps, though, so it might well be on the cards in the future. I won't be cutting up any nice-sized bits of wood for pen blanks though.

Frank, you're right - this opens up a whole new world to me. It's even keeping me awake at night thinking about it. Much rather play with my toys than sleep.