Some work is too small or otherwise will not fit a chuck so a sacrificial faceplate is the answer. I save my cut off scrapes that are left in the chuck after cutoff for these faceplates . To clean the surface for attachment use a spindle gouge to cut the surface to a slight concave . This will give an outside surface for the glue contact. Put a small bead of thick CA (preferred but can use thin) on the faceplate and spray accelerator on the blank. Mount the blank and can then spray more accelerator. Wait and appropriate time for a bond and then  the faceplate can be mounted in the chuck for turning. Once turning is complete the blank can be released  with a chisel in the glue joint and a sharp rap. You will need a pad or plastic bucket to help catch the turning .

Great tip Gerald, thanks for the submittal!

I added tag "tip" to your list of tags, great job with the tags!

Great Tip, @Gerald  Thanks!!