Doc., For small pieces like butt plugs, you can go to a plumbing supply, and get a threaded short piece of 1/2" O.D. or less galvanized pipe, and the flange to fit it. Then cut a piece of hardwood to screw to the flange, and chuck it up and true it up. then you would glue two or three pieces of typing paper to the face with white glue, and then the wood stock you want to turn, and let it dry thoroughly before you turn it. the paper will hold it firm, but let you remove the finished piece with a chisel. There, you have a poor mans lathe face plate for small stock pieces.
Bill