A YouTuber by the name of AnselmoFanZero built a sleek laser pistol that pops balloons, puts holes through plastic and can blind you if you’re not wearing eye-protection. It fires a 1MW pulse of 1064nm light using four lithium ion batteries.
The maker already sold the one in the video, but is offering to help people build their own to shoot very tiny holes in things. [AnselmoFanZero via Buzzfeed]