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Need to prepare for that typing contest your office is about to have? What about the Guitar Hero competition that's going to take place at the next company holiday party? Whatever your need may be, the award-winning Xtensor hand exercisor is a surefire way to build hand strength and finger dexterity. Exact your revenge on 5'2" Cindy-Lou Who, who beats you every year at the company thumb-wrestling championships. Victory will be yours!
Where to buy: ThinkGeek for $39.99 + S&H
[Related Gallery: 20 of the coolest gadgets and must-haves for your office: Part 2]