I manage to hold up airport security on almost every trip. The other weekend, it was a half-gallon Ball canning jar with raw, whole gold beets. "I'm gonna have to run this through again," the agent said, pulling the half-gallon- and quart-sized jars out of my backpack while the other agent does a full pat-down. Who stuffs half-gallon glass jars into a backpack, packs suspicious-looking footswitches, opts out of the tube scanner and gets a hair pat-down? Apparently me, although the agent didn't seem surprised. He's probably seen weirder stuff.
"So it was you with the beets!" said a man on the plane. Oh yes, yes, it was. I think airport security is fun, but then I'll realize that I'm at the airport, and that everyone's real goal at an airport isn't to chat up airport security, but rather, to get on a plane.
What's the weirdest or most seemingly suspicious thing you've had to bring through airport security or customs?