[Ruatha]

"When a cat is dropped, it always lands on its feet, and when toast is dropped, it always lands with the buttered side facing down. I propose to strap buttered toast to the back of a cat. The two will hover, spinning inches above the ground. With a giant buttered cat array, a high-speed monorail could easily link New York with Chicago."

What do you call that device, and is the cat happy? Will the butter go bad, will it smell? Will it be a "Smelly Cat"(TM)?