This image was lost some time after publication.

Better balls, more power. That's what NanoDynamics came up with when it created its NDMX golf ball, which features a metal center to better distribute weight and keep the ball from over-rotating. This makes for a straighter drive that's less prone to accidental slicing or deviations from grass. Just $25 for three of these power balls, though let's face it, it doesn't help your swing, does it?

Power Balls [Fast Company]