B'N this weekend we'll supervise the neighborhood kids and attempt the Diet Coke and Mentos trick (although NOT on the scale attempted here).
Sorry - I had to take the embedded video out - every time I refreshed I got a pop up window for the Active X control. But it's still worth watching, especially if you haven't seen it!
Interestingly, when I was at Walgreen's last night I checked out the Mentos display and they were COMPLETELY sold out! (Well, there were sugar free ones left - mercy on Midwestern diabetics?)