My next venture will be bottle stoppers.
What do you use to hold the blank with?
I use a PSI stopper mandrel which is a machined hunk of steel that screws onto the lathe spindle and that has a 3/8x16 threaded stud that the stopper blank screws onto. Toy must drill and tap the blank before mounting it.
I also have a couple of shop-made mandrels - threaded maple blocks that screw onto the spindle and that have a 3/8x16 bolt embedded on axis. I usually finish stoppers with wop and it's convenient to have a few extra mandrels so I can be turning while the wop is curing.