This one's worth watching! Here's a screenshot:Making the Bellagio fountain with soda and Mentos...
Anyone actually ever tried this? I can't believe it works, it's just as they say, in the video comments:
What happens when you combine 200 liters of Diet Coke and over 500 Mentos mints? It's amazing and completely insane.
Insane really is the only description i can find!