I have brought two of these back from the middle east. One had been smoked (tobacco only), JFK customs confiscated it. They told me I could wait until tests proved whether the residue from use contained THC, in which case I would be arrested!!! for importing a controlled substance. This was in 1988. I left it at customs because the other option was a huge hassel. They had my name and address, but i never heard form customs again and assume they tossed it. They also confiscated some curry powder i had picked up in malaysia since my mom is a curry snob.

Learning my lesson, I brought one back from Syria in the late 1990s, very ornamental and beautifully inscribed. It was unused, and they never even asked about it.

BTW, the weirdest one I ever saw was in Bonsia, where they make them by amalgamating various spent artillery shells.