Feeling like you're in the clutches of a retro gamer vibe and you don't want to break out? If so, ThinkGeek wants your money, via their pair of mice modeled after the invincibility star and walking Mario from super mario Brothers. Featuring two buttons, a roller ball and a USB connection (what, PS/2 too old school?), the Mario Bros. USB Mouse won't make your work any easier (especially after that roller ball starts to clog with dirt) and for $24.99 it makes a pretty expensive decoration, unless you're really, really into 8-bit games.