I came across this thanks to the "What the Pets" Blog. http://whatthepets.blogspot.com/,
A company called Fish N Flush has created a fish tank that doubles as your toilet. It comes with everything you need...just add gravel, fish and water.
Don't worry about flushing your fish, it's a separate tank from the one that fills the bowl.
These acrylic tanks are fully functional, impact resistant and stronger than china. They are completely separate from the toilet tank and are designed to fit directly against the companion tank reservoir.
Though, I'm not sure how much the fish would enjoy the daily activities of a bathroom. Plus, with the heat given off from showers, you could risk having temperature changes around the tank that wouldn't be good for the fish.
