A bitten zonoohedra with a transition to an oval to fit on a head.

I printed this with PLA, two loops with no skin thickness so it did not print the bottom layer and a .5mm nozzle on my Series one Type A Machine. Look here http://www.typeamachines.com/news/?p=132 to see me wearing it. The facets make nice reflections. I drill holes a half inch from the bottom and sew a felt brim to make it softer.