Hello all. I'm a Carolina boy that left industry 5 years ago as an industrial electrician (18 years) to teach Mechatronics (A mechanic and electrician rolled into one) at my local high school. I love tinkering and try to pass it on to my students. I'll be moving 8 miles away to another high school this year and when things get rolling good, I'd like to try a few simple, cheap mods as class projects. Mods for these small cheapo flashlights would be great. Any ideas???