ok, grab any big bottle that u can cut a hole through, and that has a hole at the top. Let's go with a coke 2 liter bottle. remove any wrapping and punch a hole towards the bottom of the bottle while it is standing up. now make a bowl by getting any tube (preferably no part of bowl should be plastic or tin foil) and get a material that can be a bowl. Tape the bowl, with a hole that goes into the tube, to the tube. Push the tube into the bottle at an angle. Now tape the tube to the bottle so it is airtight. Next fill the bottle's bottom with water, just make sure no water goes into the bowl. get a filter sucha s a metal screen, or a bottle cap with holes, if it's not plastic! Place the filter into bowl and u got urself a ghetto bong. enjoy.

the more work u put into the device the better, so screw those aluminum or tin foil shit designs given to u and go with trhe bong.