I need the cheapest, simpliest bong. I don't want to use some water bottle tin foil bull shit. It must be plastic. I'm not looking for anything insane, just a simple nice bong.
Find a headshop with in an hour drive and just go buy their cheapest acrylic hand held bong. Usually will look something like this Acryl bong fluorescent 3 different colors - Grasscity.com ~$30 price and it works well.
Almost all acrylic bongs I've seen go for like 15-25 bucks. Most headshops should have them, they are the basic items that a lot of shops like to stock up on. Just be known that cleaning them is a bitch, and they do dry out and crack after a while.
Definitely check out 3dpipes.com for sure. They sell these awesome portable ones that glow in black light. I prefer glass, but it's kinda cool for like travel and stuff and cause its easier to clean, etc.
Well if you want something cheap, just go to your local convenience store. They should have an acrylic bong there for like $20 that will do the job.