V1.2 updated, tweaked some dimensions, fit should be better all around.
I've noticed there is a shortage of real, good diffusers for flashlights.  I like to use my lights as lanterns and area lights when I camp or use them at work, so I used techniques of photographic and acoustic diffusers to create a "lantern" add-on that really throws light around.
This is a short diffuser designed to work with the Convoy S2+ flashlight, but it will fit any flashlight with a front diameter of 24mm.  It is designed to match the appearance of the S2+ in 18350 configuration (short tube), and has a cutout for the pocket clip if installed. The head is flat and wide for  headstand use.
It does a very good job of throwing light sideways, and lets some through the front as well making it useful in any orientation.  Recommend printing in clear GITD material for super cool afterglow!
Included a lower poly version and high resolution version if you're a stickler for detail and smooth prints.