Date: 1/23/2017

Photo coming as soon as my father in law emails it to me :) In the meantime, here's a render...

When my in-laws were in town my father in law presented me with small, damaged, thin plastic disc with a hole in the center.  Apparently this was a spacer that went on his elliptical handle and had somehow broken.  Could I create a replacement?

Heck yes I can. 

The calipers were brought out to measure the inner diameter, outer diameter, and thickness.  The design is exceedingly simple - a cylinder subtracted from another cylinder.

Since this contest entry is really a collection of entries, I've uploaded the STL and OpenSCAD files to Thingiverse here.