ive made so many apple/potato/carrot/etc fruit and vegetable pipes, 1 entire functioning zucchini bong with bubbling water thewhole9yards, 1 carved wooden chillum, 1 poisonous pipe out of old unfired clay, the occasional cornhusk joint and plenty of book pages as rolling paper (DONT DO THAT!!!) I've made a bunch out of glass bottles; my first method to drill the downstem hole was to just carefully chip away the glass with a screwdriver (broke many a bottle getting it right) but now I use a diamond drill bit and it works best to seal the stem to the hole with overbaked clay?? most recently I made 1 mason jar bong with a longgggg long plastic hardware store tube to hit it from but that was really lame really fast #professionalweedman