you can do the same thing with a plastic bag.

why not just make a bong out of the bottle? all you need is a piece or bowl.. make a hole on the side of the bottle with your lighter. it should fit the piece so that the (i'm starting to get buzzed atm) ... just make it so that the bowl's on the outside & the rest of the piece is inside the bottle. tape the piece to the bottle unless it fits pretty snuggly. then make one more hole for the carb near the top of the bottle. there ya go! a nice bong.. just fill with water & smoke it up !

(i didn't go too into detail cuz i'm assuming you know how a bong works) & cuz i'm high..