As far as USB gadgets go the iSharpener USB pencil sharpener could be considered one of the more practical ones. It actually has a practical use although I can’t remember the last time that I actually wrote anything with a pencil. The device of course is powered by your computers USB connection but if you’re all your ports happen to be occupied at the time your lead breaks it can be backed up by 4 AA batteries.
The iSharpener seems simple enough and personally I think it should have been called the iSharpen, but they did add a nice little “spin” to the device. Instead of just a boring old grinding noise while watching wooden shavings fall into the plastic bin, the makers added 3 colorful LED lights inside the light up when you’re sharpening! How’s that for adding excitement to your day?