Diet Coke and Mentos
Well, what a combination apparently. I saw a Metro laying on someones desk today, it could have been from any day over the past week, but it had an article in it about 'experiments' with a 2 Litre bottle of Diet Coke and a pack of Mentos (Mints or Fruits). The pictures showed a 16 foot jet of Coke spray coming out of the open bottle. Now things get even more interesting. They added an address of a website where they experimented with over 200 litres of Coke and over 500 Mentos, to create their version of the fountains outside the Belagio casino in Las Vegas, and it is amazing. You can try for yourself at www.eepybird.com. I would have linked it here, but the site is pretty slow at the moment on account of all the people looking at it, so give it 5 minutes or more to load the video.
On the site it also linked to "Pepsi Girl" (reminds me of Pepsi and Shirley, remember them? but I digress as usual), who tries the experiment on herself. Try not to watch this with anything in your mouth please. You have been warned and Progster inc. can take no responsibility for damage or cleaning bills suffered as a result of view said video.