"If you happen to travel by plane, you have to bring look through models now for security reasons."
I doubt I could do it now, but I took a "flat-packed" model railway to America in 1996.
That looked really spectacular on X-ray, with loose wires and switches everywhere.
(I know because they invited me round to look!)
Even my little air-portable Emett pizza might be in trouble now. Battery, wires switch...
"Here! Let me just show you what it does..."