TSA confiscated a Cigar Punch from my BIL because it was made from a .44 Ca Cartridge. You pulled the bullet out and it had a punch attached. It took three Officers to decide it was a danger.
In October of 2001, the idiot passenger-screeners at Phoenix Sky Harbor wouldn’t let Joe Foss take his Medal of Honor with him on a flight - they thought it was some sort of oriental martial art weapon.
Had they known he was awarded it for shooting down airplanes, they would probably have fainted dead away.