Diet Coke and Mentos

The guys at Eepybird, who brought you video of Diet Coke/Mentos geysers which swept the Internet, are at it again. Check out this preview of their new video, coming on 10/30. More important to this blog is the competition that they are promoting. Sponsored by Coca-Cola, they are challenging viewers to "make a video of everyday objects doing extraordinary things." Sounds like a great opportunity, especially for middle or high school groups that are involved in technology. According to this article in the Toronto Star, Steve Spangler (of Steve Spangler Science) started this craze. For a more scientific approach to why Diet Coke + Mentos = Geyser, check Spangler's site. Also, Mythbusters did an episode on the topic. Anyone have other science sites on this?