It's the cookie monster - funny, fat and hungry. And very, very friendly.
You can download a desktop and an iPhone wallpaper with the funny monster. You can also buy a T-shirt and a card with the monster from my online store:
Blue cookie monster iPod Touch case with customizable name, you can of course just leave it "The Boss" :)
cookie monster mousepad with customizable text:
You can see some other funny monsters - strange and always smiling: the crazy Greenish Monster and the evil Spheroid Monster.