I've started on a small mug, but this'll be a bit more traditional in appearance. (Stock wasn't big enough for a castle-ated version.) Got the piece cleaned up and slightly under 3" O.D.. Got a 1" bore finished, but want a 3/4" or 7/8" powder chamber at the bottom to maintain minumum wall thickness. Not sure whether to go with a simple round bottom or something a little more elaborate.
Maybe a chamber more like a mortar?
My Harbor Freight "Silver & Demming" drills go to 1", and did a rather decent job on the bore for me. (Went to 7/8" and finished it with a boring bar.)
Still not set on an outer profile, but I'm sure I'll have to round up a chunk of flat stock to fashion a baseplate out of.
Roger