You remember all of those weird USB devices from last year? Well, you can relive the love (or hate) again thanks to PC World, which has put together a list of the top 15 wackiest USB devices. My favorite is a USB version of an old program that allowed you to "break" your computer in various fun ways; it's called ScreenSmasher and it features a USB-based Sensor and an eight-inch foam axe. Smack the axe against your screen whenever your computer gives you soulless lip and voila! enormous cracks of broken-glass-doom appear like magic. It's even funnier when you do it to an LCD and costs $20, via ScreenSmasher.com.