I grabbed an empty vegetable oil bottle (You know, the tall rectangle shaped ones?) And turned it into a decent bong. I used my metal bowl from my hookah as the stem and bowl. Yes, I cleaned the bottle with soap and water and let it dry, jw, it IS safe right?
sounds pretty safe because you're using a metal bowl and downstem. if you post a pic i could tell you for sure
It's vegetable oil. You cook with it, eat it. As long as your not smoking plastic at all, you said you have a hookah bowl on it, there's no problem at all.