Just run a quick search on YouTube and you'll see that everybody had to test this for themselves and film it to share the experience with the rest of the world. How fun can it be? You put a Mentos in a bottle of coke and you get a fountain of coke, and again, and again, … So for all of you that want to give this a try, take a look at what these guys are doing first: "What happens when you combine 200 liters of Diet Coke and over 500 Mentos mints? It's amazing and completely insane. The first part of this video demonstrates a simple geyser, and the second part shows just how extreme it can get. Over one hundred jets of soda fly into the air in less than three minutes." Now that's what I call worth sharing with the world.