When I made my Buffing System, I promised to try to make some bowl buffs. Finally, after a few years, I did. I will put this into .pdf form, so if anyone wants it, email me.
Pic One - What you need:
Item 1 - A 4" long carriage bolt with a nut (size depends on your drill press, mine is 1/2" dia).
Item 2 - A 1.5" stack of cloth, cut to 9" diameter circles. (The little piece on top was added because I had it.)
Item 3 - Piece of 2" dia pipe 2" long (mine is rigid copper from my scrap pile).
Item 4 - Large fender washer, larger than the pipe (I used a 3/8 floor flange because I had it on hand).
Pic Two - Screw the bolt through the stack of cloth.
Pic Three - Set the piece of pipe, centered over the bolt.
Pic Four - Place the large washer over the bolt, centered over the pipe.