Bill Murray was featured in a parody video (sending up Perrier) where he's pitching "Swill" the bottled water that's dredged from Lake Erie.

He's in a restaurant with a hamburger, and he pours catsup on it, and it's all runny, but then he opens his bottle of Swill and goes to pour it over ice and it slowly oozes out of the bottle into the glass as the song "Anticipation" starts playing (a parody of the catsup commercial that was big at the time). The water is filled with dirt and debris an an old pop-top... but Bill likes his "with a twist."

Could only find it in German online, but you get the gist of it. I think the "water" was that old toy "Slime" that was sort of a rubbery blob of chemicals that you could do strange things with.

Enjoy: http://www.myvideo.de/watch/4630638/Swill