Obviously she wants something from you other than your company by offering you gifts, so it would be wrong to take them and give nothing in return. Obviously by accepting this token you may be sending her the message that you guys are cool or whatever, so if you don't want to do that, then don't accept it. It would be kind of shitty to just take the pipe and give nothing in return, but whatever you do just remember what goes around, comes around. Good luck!