Tips for the Diet Coke:
1. Heat it by placing it
lid on in a bucket of very hot water. Otherwise you drive off all the CO2 before you get to explode them.
2. Have all your cokes outside and sitting down (yes the cokes not the kids) before the experiment, so they have time to settle. If you get little cherubs to help carry stuff down the coke will be a shaken up before you open them, thus defeating the purpose, as they fizz up when you open them just from being shaken about.
re the Hydrogen Peroxide. I actually got onto the carpet cleaners via my cleaning supplies place. They sell it, but only in 20L drums. So they actually put me onto a couple of their end users, seeing as how it's not exactly a trade secret or anything. You could try asking local cleaning supply companies. And beware the hairdressers. Last time a salon said "yes yes we have some", it turned out to be already mixed with a conditioner, so it wasn't what we needed. Hospitals also carry H2O2. They have to use it on motorbike accidents victims, to bubble out all the gravel that is usually embedded in their thighs after a crash.
![Shocked 8O](./images/smilies/shock1.gif)
Gives one the shudders just to think of it, but it works.