In an office, one might find a computer. The computer is necessary for one's job, to complete their work. One may also find a goldfish tank, a decoration. An ornamental peice to remove one from their work.
Why not put them together? My friends in physics worked on plans for a fish tank computer. The tank would be formed around the computer's components. The disk drives, and other convienent ports, such as mouse, USB and keyboard, would come out of the front of the tank. All other external ports would come from the side, or the back. The computer would be visible inside the tank, and the goldfish could, conceivably, swim around different cards and drives.
Imagine a device that one can do work on, but also can distract one from work. If nothing else, it'd be a great conversation peice.