A couple of years ago, I successfully hit a writing deadline, and rewarded myself with a Think Geek shopping spree. One of the things I bought was this awesome Black Beast of Arrrggghhh. It has a Brother Maynard on the end of a string, and when you pull it, it makes a terrifying sound. And eats Brother Maynard. And there is much rejoicing. Yaaaaay.
The castle it's lurking behind is a limited-edition Dungeon Master's screen that was made to commemorate the release of 4e. Most of them were sent to retailers, but a few were kept and given to people who have made contributions to the gaming industry. My friend John Kovalic was instrumental in making sure this one found its way into my geeky little hands. I haven't made contributions to the gaming community that are anywhere close to John's, but I just couldn't bring myself to refuse this awesome bit of geekery.
Think Geek doesn't appear to sell the Black Beast any more (you can buy one at paizo if you want) but they sell the Killer Rabbit, and a Black Knight (who is invincible) if you find yourself suddenly in need of Holy Grail items to decorate your home or office.