after watching a video on YouTube where a guy was struggling to properly light something up close with a fenix flashlight i had an idea for a simple light diffuser, basically its just a ping pong ball on the end of your light! after a few minutes searching around i managed to find a video of a guy who had the same idea and made a great video showing just how well this works
http://www.youtube.com/watch?v=0HZwGMMEQ0k
now something like this would have lots of uses, for instance as a nice camp light or as a light for delicate tasks where u need proper lighting, hell it'd work nicely just for lighting up your surroundings while walking
anyway, have fun turning your highly focused flashlight into a nice diffuse source with no permanent modification