Are you ready to guard your home with a non-toxic, non-lethal armory that sounds more fun than serious? Some fine folks have decided to automate a paintball rifle apparatus to go off once a motion detector senses movement. Why waste those precious (and sometimes, useless) home security sirens when you can deluge a home intruder with paint?
Now, after watching the rather long video clip above, you may decide this is not for you during the hustle-bustle of the holiday season. If you are one of the chosen few that do have ample time during this part of the year, and are handy with the electronics and the mechanical aspects of this project, you could have the coolest home security system on your block (or town).
Requirements are a motion-activated security system (or just a sensor), a microcontroller, a red laser pointer (we all have one of those), and some serious elbow grease and patience. But, once you've seen the final result, this is one kick-ass project. Highly recommended -- and if you build it, we'd love to hear from ya!