I’m on the fence about this one. Solid Alliance came out with a UFD which also incorporates a stamp. It’s called the USB Stamp. Use one end to store data and the other to graffiti up whatever is with-in arms reach. The problem I see with this is the time it takes to eject the USB drive from your OS you could easily have grabbed 3 stamps to do your business.
I’m sure this concept was the request of a customer, but kudos to SolidAlliance for thinking outside the sponge box.
Source: Akihabara News