actually, there's else you can do with bottles and some other equipment.
hmm... you need ... uhm... somekind of liquid bathroom cleaner (pour couple of cm's to the bottom of the bottle) and some ...*opens the dictionary*
...naah.. didn't help.
You need to put a little pieces of that thing we call "folio" around here. It's the metallic kind of thing you can use to cover food. Or you can wrap a fish inside it and heat it. The thing keeps the heat inside.
Now, when these two matters mix, they generate somekind of pressure inside the bottle. (remember to close the bottle!)
Anyway, with that mix, you have an exploding bottle in you hands... Be carefull tough, it's rather effective. Slow but powerfull.
Specs :: [1333Mhz : 256DDR : Geforce 2 Mx 64MB]