Here's one that will have you scratching your head. The Flexiglow FX Game Pad is a mouse pad that glows different colors. The power is fed to this oddity through the USB port, making every game session like a night out in a disco. Why it's called a game pad is beyond me. The last thing I want to see while I'm fragging is a pulsating glow under my hand. However, being that my opinion is usually in the minority, here's a link to a review.
