On a modelling-related trip to Seattle 2003,
I took a box of 4 ceramic mugs,
each one filled with various white-metal/pewter casting "gifts" for various modellers. (I know of at least 1 x HOn3 logging layout that uses kangaroos to haul the snigging line back into the bush, ready for another log pull...
Qantas X-ray and US customs staff on the Aussie side were OK,
arrival on the International side of LAX was fine,
but the security/X-ray checking into Alaska Air for the LAX-->Seattle commute leg simply couldn't "see thru" the dense ceramic + casting combination, nor the 12" thick worth of Railroad Reference books I was carrying, and were only too happy to reach for the tools to break thru my Samsonite hard-case to investigate.
It was visible painful for the Security staffer to come over and mutter under his voice "...lock numbers..." in request for the 3-digit lock code,
and even more obvious that the only thing that had halted his reach for the tools was the imposing Aussie with the Akubra hat and bright yellow Huski jacket standing at the barrier, staring directly at him/the case throughout the entire process...
I'd finish by saying "a sense of humor goes a long way",
but in contemporary security headspace,
"humor" is not something to be reccomended...
("...we do not have any sense of humour we are aware of...")
Aim to Improve,