Diet Coke, and Mentos, and the Bellagio?

Today I found a link in my del.icio.us network from fellow Random Human Justin. Showing the creative and inspired use of mentos and diet coke. They re-create the famous Bellagio fountains in Las Vegas in this spectacle of carbonated beauty! I found this rather amusing, and also disturbing at the thought of the cost, and the amount of time they must just have on their hands.