My grandfather brought home 75mm Trench Art and casings, a personalized bracelet made from a JapaneseZero, and captured nicknacks from GUAM in WWII. My Dad had a bunch of stuff he brought home from Korea I remember seeing it as a kid but when he passed a way much of it "disappeared" like his firearms so my step-mother says. At least I got his KA-BARS, his decorations and a few odds and ends, mostly field gear and tools in one of his footlockers I grabbed when I visited him about a year before he died.
Most of the stuff I had from my service years is long gone, most with my first divorce thanks to my EX.