You could make a gravity bong with the bottle. Use some type of screen or make one out of the foil for the top.

Edit- added some pic's
Zimzum Reviewed by Zimzum on . Help me build a ghetto bong or pipe ;D Hey, im looking to make something easy for when i go on holidays with college. I dont want to take any peices out with me. Something i can make out of general items. I have: Aluminum foil Bottle Pens Other stuff. Rating: 5