I recently thought I would give bottle stoppers a 'turn', and use up some of the burl scraps I have. I began by boring a 3/8ths hole in the blank and gluing in a short length of dowel. Unfortunately, the dowel 'squished' and splintered in my drill chuck leaving me very frustrated. I figured there had to be a better way, and began searching through the shop for something else to use. I came across a piece of threaded electrical tubing. If you have ever installed a light fixture you should know what this is. The tubing (available in any hardware store) 'screwed' ever so easily into the 3/8ths hole (I redrilled), yet held firmly enough to not slip off. This worked great! I thought to take it one step further, and filled the tubing with solder. Now I have a nice solid 3/8ths mandrel that chucks right into my drill chuck in the headstock. I just drill the hole in the blank, thread it on to the mandrel, pull up the tailstock and go to town. It even holds strong enough so I can pull the tailstock away and finish the top of the stopper. Then all I have to do is insert and glue the dowel and the cork all in one step!
Brian
Brian