The Red Bear of Horror
I got a laugh out of Last.FM's build monitoring approach:
These 3 bears sit in a prominent position and watch our developer’s every move. When things are good we have a green bear gently glowing and purring, when changes are being processed a yellow bear joins the party, and if the build gets broken the growling evil red bear makes an appearance. The developer who broke things usually goes a similar shade of red while frantically trying to fix whatever was broken while the others chortle in the background.
Such a quirky, easy, relaxed approach to software development and yet they managed to make Last.fm a decidedly more annoying website.
I liked it better back when it was audioscrobbler myself.