Parametric diffuser cap for flashlights. --- Update 2014-06-18 --- Add the ability to put a notch in the side wall to make room for a lanyard to allow storing the diffuser on the back of a flashlight with a lanyard. --- Update 2014-11-06 --- I wanted to use a Cellphone charm strap to hang this off of my Fenix LD01 (because, of course, I lost the previous one) so I added the ability to create a hole in the side opposite the notch, then printed a new one out in glow-in-the-dark filament. --- Update 2015-05-27 --- Added anti-roll feature, the ability to specify the length (to make light wands) and a few pre-rendered versions for flashlights I have on hand.Printed at 0.2 Layer height, 0% infill on a Replicator 2 in translucent PLA.