glue) to brush on the tube and all the individual leather pieces, push them on the brass tube tightly and use enough glue to soak them. make sure that every leather has the fuzzy side to the skin side glued.
use a clamp or a vice to clamp the blank together while you leave it to dry overnight.
the next day when the glue has dried, you can trim the leather flush with the brass tube using a flush trim drill bit ( mostly sold with a pen turning kit) or sand it down with a belt or disk sander making sure the ends are square to the tube.
as i wrote in 