So I made this two or three weeks ago when my friends bong killed me from strong ass hits after we matched each other on two bowls each. I needed my own.. and now I have one.. it works wonderful, and ill tell you guys and girls how to make it. Needed material : - Gatoraid bottle. - Plastic cigar tube - Aluminum foil - Pin - Tape Instruction on how to make : 1. Take the gatoraid bottle and heat it up so it makes a whole from the heat 2/3 down from the top (or where you think it looks right, remember the stem is going to get real close to the bottem of the bottle). The hole has to be smaller then the diameter of the cigar tube. 2. Cut the Cigar tube down at the side away from the opening so it is just one long, fat tube. This is now your stem 3. Push your stem into the whole (remembering the hole is smaller then the cigar tube in every way) so that it streches just enough that its completely air tight. This step is very important to get right because I dont have a way to fix un-airtightness except if you use your light to melt a little bit of plastic and push it togeather when its all in place. 4. Take your tape and tape the stem pointing as far up as you can so no water ever gets into your bowl. The bottem of your stem should be close to touching the bottem middle the the bottle, a centimeter or 2 should be far enough away. 5. Take your lighter and burn another whole an inch to an inch and a half about the top of the first whole, make the whole about the size of your pinky finger nail, a little bigger or smaller depending on the person making it, this is your carb. 6. Take your foil and cover the top of the stem, then push the foil into your hole in the stem so it goes into the stem, make it deep enough to hold a good bowl, about 2-3 centimeters deep, around the depth of a water bottle cap if my estimations are bad. 7. Take a pin/needle and poke a good quantity of small holes, your going to want alot of smoke to go through into the stem into your chamber, I personally do alot of holes myself because my chamber fills up very good, also i sometimes double or triple stack my foil so the holes dont eventually cake in too much and rip in togeather, but they do so its good that the filer is very inexpencive. 8. Place a single wrap of tape around the foil hanging around the side of the stem at the bowl to make it stay on and in shape better and keep it mostly airtight. Just a few extra things about the bong, first it hits great for a home made bong, fill the water up to about half way to the top of the hole that the stem goes into, change your filter once and a while, and last you need to take your finger off the carb before you stop sucking, most people do already because its what your supposed to do to clear the chamber, but I destroyed a bowl in one hit but since I sucked the entire bowl my lungs were filled and I never took my finger off and I guess since the water was mostly sucked out of the stem and when the water went up it pushed burning weed out and i burned myself, i guess taking your finger off lowers the pressure and slows it takes the pressure off. Also im going to post a few pics of mine when i clean it up later, my stem has alot and alot and alot of resin in it, I need to retape mine up because the tape goes down over time if you didn't tape it up good like I didn't, and I need a new filter because mines completely caked and holes are starting to come togeather.