Bought some nice-ass glass for my best friend and a new grinder for myself in Spain and getting on a plane flight tomorrow from Madrid to Washington DC. The bowl and grinder have never been used and have no resin or anything. Is it legal for me to bring the things back as a gift and will they give me a hassle about it? I'm 18 years old and don't wanna get caught up in anything. Thanks in advance and happy toking .