Racetrack Screensavers!
Oh, the things you can do when your boss is away. Some kids at Dm9ddb/Brasil set their screensavers up to look like corresponding pieces of the same race track.
It actually turned out pretty nifty. You know that feeling you get when you create a successful domino effect? You're both impressed and slightly surprised, right? That's what this was like.
The objective was to disseminate the game Virtual Global Race (or was it just to promote Intel? I can't really tell). The screen savers took a month -- and 20 people -- to perfect. See making-of.