There have been innumerable visually stunning, cool-looking videos made in the history of the format, but rarely is an idea alone impressive. Cue up the Gamits' video for "This Shell" in your browser, though, and you won't be treated to a flashy video; instead, you'll find yourself trying to piece together a puzzle. If you complete the game quickly enough, you'll win a download of the track. The idea is simple, but absolutely brilliant from a technological and marketing standpoint — and as a bonus, this may very well be one of the only music videos in existence that's actually fun to watch.