So I made a homemade bong the other day using a trombone mouthpiece as the bowl and a lotion bottle (one of these). We covered it in red tape and this is the result: Tell me what you think (or post a pic of your own homemade piece).
I think it's not too much of a good idea to be smoking a homemade bong at all. If it's tough to get some real glass around your parts, think about investing into a hookah or a non-water pipe. Plastic makes the hit taste like crap in my opinion. It may be acceptable if you voluntarily smoke a gravity bong, but I strongly advise against it. Also, I think you need to reup the pic, because I can't see the actual result