watch that turns into a hamster 

Something very advanced, technologically or otherwise, but completely useless.

A concept or idea that, while 105% awesome, has no real world applications whatsoever.

James Bond: "Hey Q, I've got all these gadgets left I didn't fucking use! This watch, you push a button, turns into a hamster. What was the point of that? And the jam trousers, was that your idea? Fucking useless!"

John: "I've just put up a website that takes your picture and shows you what you'd look like covered in bird poop!"
Jane: "Awesome! And about as useful as a watch that turns into a hamster"

watch that turns into a hamster by MathKills December 22, 2009