Slim, tiny phones are great and all, but if you frequently use the vibrate mode on them then you know how wussy those little shakers are. If you're wearing a pair of jeans you probably miss calls more often than you feel them.

Well, this cell-phone call detector pen is here to help you catch those calls a little more often. It lights up when you receive a call, so if you keep it in your shirt pocket like some kind of nerd it'll be easy to know when someone is trying to call you. It might be less appropriate if you're in school and are using the pen to take notes, or at a business meeting where you don't want to be constantly interrupted by an annoying, flashing pen, but for a mere $5 I'm sure you can find some appropriate situations to use this thing. — Adam Frucci

Cell Phone Detecting Pen, via Book of Joe