Nothing beats two items combined in one package, giving you one less thing to carry around. Especially when it's done in a particularly clever way. That's why this eraser flash drive is so great.
Yes, it's a USB flash drive encased in an eraser. You can use the casing to erase errant pencil marks while also storing data on it, but here's the catch: if you erase it all the way down, you'll expose the innards of the drive. Yep, there's no plastic casing around the insides, so you'll reveal the board and chip of the drive if you erase all the way down. I'm not sure if this is a good thing or a bad thing, but it's certainly an interesting twist on the idea of a flash drive.