Inflatable USB drive
EverythingUSB reports on this remarkable little device. This little monster likes to eat information.
As you put more and more stuff on the flash drive the bigger it becomes. When its near exploding it will tell you that you have nearly run out of space. They only come in this orange color as far as I know. I really like the idea of giving data a physical size, like it actually takes up a portion of space somewhere. It gets a little bit harder to take around when you start to fill up the disk.
Catchy, and definitely worth style points. The website of stuff at Plus Minus is really worth a look at. There are some pretty innovative and cool little gadgets.
The flashbags look like they could offer a lot of storage.