Mentos + Coke!

Wow, I never realised that Mentos and Coke would make a really explosive revelation. Literally. Check this out.

Mentos and coke

WARNING!
This is a really dangerous experiment if you do not know or do not control what is going on. The information below is just for your knowledge only. I really DO NOT support you doing this on your own. Proceed with caution and with the knowledge that full responsibility lies on YOU, the experimenter.

It seems that the ingredients on mentos seem to interact with the water molecules in coke. This allows the trapped CO2 to emerge in a gush. Also, notice the pits on the surface of Mentos? This allows the gas to form bubbles on the surface of Mentos. Furthermore, Mentos is denser than Coke (which should be denser than the rest of us, except maybe blur me=p), causing it to sink downwards and release most of the gas trapped within the whole column of Coke. This sudden release of such high pressured and large amount of CO2 causes a geyser to erupt from the bottle, drenching everything nearby with Coke!
This is exactly the same thing that happens when you add ice cream to colas to make a float, or adding salt to colas for a layer of fizz. It's just that this is so much more powerful. And it should work wit h all colas, not just Coke. Trademarks of Coke and Mentos are registered by the respective companies.