What is it about USB devices that makes people want to abuse them so? This HDMC USB key can be dunked 1 meter under water and withstand shocks from drops of up to 4 feet, according to Akihabara News. Other than its rather odd almost-square shape (about 2 by 2.4 inches), the key is most notable for an extra-wide cord that doubles as a protective bumper around the device.
If you're really sadistic, however, you probably also want to consider thethat can be submerged even deeper (4 feet) and withstand temperatures minus-4 and 185 degrees Fahrenheit. But then you might get reported to the USB-safety authorities.