Just printed a conic diffuser for my new EDC light. It's very simple, not too long (1" tip), has a square shape at the barrel to stop rolling, and with a little hole in the corner for a lanyard. Works fantastic illuminating the entire room on high. Fits snugly, as I've done multiple hole printing tests a while ago for many round things I plan to 3d print. Needs some sanding inside and outside as usual. On some of the images in the gallery you can see dark horizontal stripes, as the flashlight was blinking on low power settings in sync with the camera's V-sync.