Room blaster, the motion sensor you'll steal from your kid

We've had our fill of boring motion-sensor alarms designed to clip onto laptop bags or hotel room doors and sound an alarm when rattled. Why can't someone make a motion sensor alarm that looks like an alien robot, makes really loud user-selectable noises when it detects an intruder, and fires harmless-but-startling foam disks at said intruder?
Someone must have read our minds, because the Room Blaster is all that and more (though it's missing the high-powered laser we were so hoping for). Sold as a kids' toy for as little as $19.95, the Blaster looks like the perfect geeky cubicle-guard as well. We envision parents snatching them from their kids and bringing them to the office to fend off annoying bosses co-workers.