re: Small box

When Holly is inlaid it is 1/16' wide often in "String and Berry"   or "String and Beads".   Often the ends of a line has a round "bead" or "berry".    thus the ends are capped.    Could do that with the copper.   

Think Oldtool has the answer for the tapered ends for going that route.    

Looks pretty nice, the piece posted.