Depends on where you live man.

I know in the states they're very proper about it, and for the record, if you live in the US, do not go in asking for a "bong" cause they'll kick you out, ask to buy a "water pipe".

Smoke shops/head shops sell these, some convenience stores might ( I don't know truthfully).

Luckily, if you live in Canada, nobody, and I mean NOBODY, gives a fuck about your age, I honestly believe they're not suppose to, but in all seriousness, people don't give a fuck. Just go in, say you want a bong, offer cash up front and make sure they're no cops/other people around depending on the circumstances, and you may refer to them as bongs in Canada :stoned:
GreenGiant07 Reviewed by GreenGiant07 on . Where can you buy a bong The title explains it all. Also how old do you have to be. Rating: 5