Eraser USB Flash Drive
It seems like everyone's thinking of fun ways to customize USB flash drives. This is one of of the more successful designs in my opinion. The eraser USB stick is, well of course, in the shape of an eraser. The body is made from lacquered teak wood. 1GB and 2 GB varieties are available.
I have no reason for anything but the cheapest flash drive. However, say you're carrying around something important (like nuclear missile codes), than this might be more necessary.
It's under $20, has a 2GB capacity, and can be used just like a USB flash drive. There's also a built-in voice recorder.
This 4GB USB flash drive provides super fast data transfer at a 150x rate. It's durable housing is water and shock resistant to protect your data from damage if dropped.