We need something to assemble on the line, so I came up with "robot" people. There are two leg styles, two arm styles, two body styles, three head styles and a cup to fit one of the arms.

The 3d print files are available on this site. The legs, arms and head screw into the body (legs must go in before the arms). My favorite is Mike's head (my head). Using a 3d sense scanner on a tripod, I slowly turned around in a low back office chair and scanned my head.

The other heads came from elves in Santa's Shop.  If the parts are printed in different colors, even more variations can be produced.