How can I make a bong?

1. Find any type of bottle or can(a 2-liter bottle or 16 oz bottle works fine)
2. Punch a 1/8 inch to 1/4 inch hole 2 inches from the bottom. This hole is where the smoke will enter the bong.
3. Punch a small hole up near the top (about where the "dome" of the bottle is. This hole should be easily sealed with one finger and will be used to "clear" the bong.
4. Place a tube in the bottom 1/4 inch hole. A cheap and easy way to do this is to use a straw (large ones found at "boba" shops work best). Avoid using a pen tube unless absolutely necessary, because the plastics that some pen tubes are made of can contain dangerous chemicals that release bad things when heated even to a low temperature. Coat the inside and outside of the tube with a non-toxic sealant spray, if you use one.
5. Attach a bowl to the end of the tube. If you can, pick up an inexpensive glass bowl from your local smoke shop, they will usually run about 5 dollars. Hardware stores may have plumbing fixtures that can be bent into bowl shapes. You can also roll a cigarette with rolling papers and attach it to the end of the tube. Aluminum foil can be used but it is not recommended. Please check to make sure your bowl material is safe for inhalation before using.
6. Seal the tube at the entry point to the bottle (use gum, electrical tape, whatever). It should be waterproof and have minimal air leakage. A good way to test this is to put one finger over the bowl, cover the clearing hole, and suck in from the top of the bottle. If you feel air being sucked through the bowl, then you are ok.
7. Fill the bong with water, until the tube inside the bottle is completely underwater by at least 1 inch. You can fill it with more, but there will be less smoke in the chamber when you smoke.
8. Load the bowl with your favorite smoking product, cover your clearing hole up with one finger. Light the filled bowl and hit. Remove your finger from the hole and clear the smoke that builds up in the chamber.

ot if you want a more long lasting one take, a peice of pvc pipe the longer the better, cap off or duct tape the bottom up, drill a hole near to the bottom. buy or make a bowl for it and put in the hole, add water and smoke to your delight

all u need is a bottle of any kind and put a hole near the bottom of the bottle and get a metal tube and the head of a pip and connect it to the metal tube and just smoke and if u want u can put water in the bottle not to much and u have a blubber.