Get a soda can and mould a "bowl" into it and poke holes in it with a knife so you can suck shit through.
id go with an apple, just carve it out, using the top as the bowl and hitting from the side of the apple...tasty too!
if u mean as a bong its easier if u have a piece, but u can use a socket or something like that for the bowl, just cut a hole in the side for the bowl and take hits off the drinking part, and make sure its airtight!
Just use an apple, its easiest. Water Bottle Waterpipe: cut piece of can, make into cone to use as a bowl. cut hole to put a pen tube through in the side of bottle. put pen tube in hole angled down, bowl in pen tube. cut small rush hole towards top. fill with water, enjoy.
for a fairly fast pipe drill into the top of a lightbulb or remove the socket part, clean out the light bulb really well, drop in a nug and vaporize it by applying flame to the glass.
for a good home made bong get something big airtight and water proof, cut out the bottom, put a stem through the top just slightly above the level of the previous opening you made by cutting out the bottom, find something to use as a bowl or better yet use a pipe bowl and connect it to the top of the stem poke a hole in the side as close to the top as you can (this is your carb and what you will take hits from). then you are done. instructionados: put in a body of water so that the level of the water is just below where your stem connects into your bong, pack the bowl. have one person hold the carb and pull up on the g bong while the other lights it. when the water level reaches below the level of your stem or close then release the carb put your mouth to it and push down on the bong (the water will push the smoke into your lungs). the instructions may sound complicated if you dont know what a gravity bong is but its worth it (especially if you can find something really huge to make a bong out of). this is great because it will cool down the smoke, pump the smoke into your lungs, and its good when you have multiple people because you can often get 2 or 3 hits off of it each time it fills with smoke (if you use something as big or bigger than a 2-liter for the main part of your bong). its also great because you can get pretty fuckin stoned even if you are smoking crappy cheeba with low thc. if you want to take this model a step farther you could add tubes in addition to the carb to make a gravity hookah bong. you could also put ice cubes in your bong water(make sure most of them get in your bong before you hit it), use a chilled glass bottle (this would make the hit lasts longer in the g bong before dispersing),and/or use a spoon as a bowl (attatched to the stem with fish tank tubing so that your bud doesnt fall out) and just work the bong more slowly so that you can get a vaporized cooled gravity bong hit. though i have never done these things to improve a gravity bong i would like to sometime as they would make the ultimate homemade bong. macguyvers got nuthin on me
