What is the favorite thing you keep on your desk?

Keeping figurines, rubber ducks, alarm clocks and other kinds of decoration on ones desk seems to be quite common these days.

It's not hard to get that you'd like to pimp out the place where you spend roughly eight hours every day.

I'm curious as to what you keep on your desks, and more specifically; which one your favorite is, and why?

My favorite? A little vault boy bobblehead that I bought at a carnival. Why? He's happy, always seems to dig the music I play (he's a bobblehead after all) and always prepared to take on whatever life throws at him.