http://www.weedcity.co.uk/shop/product.asp?strParents=39&CAT_ID=281&P_ID=1272 That looks soo crazy, and you would never need to change the water.
Yeah, but this one has liquid incorporated into the chamber neck. You don't see the green part? that's the liquid that is meant to be frozen.
good thing it's cheap or else i woulda said that bong is for morons it's only Rings of water which u suck the smoke through, it's not like u are sucking the smoke through THAT water, it's all for looks u actually think smoke travels slow enough to be chilled by water outside behnid plastic?