While fewer and fewer of our transactions are cash-based these days, when you do deal with cash, it's reassuring to know that what you're getting wasn't printed on somebody's inkjet. The Counterfeit Bill Detector ($60) helps you verify authentic greens with an UV light to show security threads and watermarks, a magnetic detector, and a 2.5X magnifier to verify microprinting.
Like the idea of the Rovio but don't like having an insect-styled robot running around? Check out the WowWee Spyball ($TBA). The remote controlled, Wi-Fi enabled, robotic ball features two wheels to let it turn 360 degrees, moving in stealth until it's ready to shoot video or stills with the built-in webcam, which pops out of the top. [via]
Keep your mitts warm on cold winter days with the Sanyo Eneloop Kairo Light Warmer ($66). This compact device runs on two included rechargeable AA batteries, and offers hours of warmth despite its small size. With a surface temperature of 98-104 degrees, it's ready to battle even the most bitter cold. [Thanks, Matt]
Whether it be zombies, robots, or giant mutant guinea pigs, be prepared with the 72 Hour Emergency Survival Kit ($100). This stylish kit includes a 5-in-1 hand-crank flashlight, 2400 calories worth of food, a prepaid phone card, a hygiene kit, waterproof matches, a sleeping bag, a complete First Aid kit, duct tape, an army knife, and more. In other words, pretty much everything you'd need (minus the booze, of course).
Record whenever genius strikes with the Ovation iDea Guitar ($600). This iPod-like acoustic/electric guitar can both record and play MP3s, letting you save your jam sessions or rock along with any song. The iDea's built in preamp has a pitch-stable speed adjustment allowing you to slow down MP3 tracks for easier learning. On-board USB lets you quickly transfer recordings and songs back and forth.