Video games, movies, and modern militaries are all full of robotic gun turrets that allow for remotely-controlled carnage. [Paul Junkin] decided to build his own, albeit in a less-destructive ...

The Room Defender is a $33 tripod-mounted, foam disc-shooting weapon that has a motion sensor to detect intruders into your kid’s overly-moist room. When someone enters, the Defender gives them a ...