Richard
Quintana has a dream: "to put some fish in a man's toilet, so he will never have a boring trip to the pot again."
Here's the story behind the Fish 'n Flush:
The Westminster entrepreneur has invented a toilet tank that doubles as an aquarium – with a breath-catching twist: When you flush, it looks like all the water is draining out of the tank and the fish are going down.
It's an optical illusion. The fish are actually safe in an outer aquarium made of high-polished plastic. What you see draining is the toilet water in a separate tank behind the aquarium.
Watching the tank refill – and the fish merrily swimming, oblivious to any threat – you get the urge to break into applause.
Link (with video) - Thanks Julie Anne Ines!
See also: Toilet-O-Rama (a huge compendium of toilet-related stuff, a co-blogging with Miss Cellania - and yes, there's an aquarium toilet made by a different guy there)
I could only imagine the stories they could tell.
The clear resin toilet seat with fishhooks in it is much more impressive (and scarier).