Ok so if you took the hair-like stuff off a coconut, put it in polyjuice potion and drank it would you turn into a coconut? Like how Hermione turned into a half cat because it's only supposed to be for human hair or nails what do you guys think?
It probably wouldn’t properly turn you into a coconut, since a coconut is not a human. You would probably have to go to St. Mungo’s, anyway.