I had an uncle that brought home several items including a machine gun, I have no idea what kind I was just a kid at the time, he gave me a helmet I have no idea where it ended up, that was 70 years ago.
I had a science teacher whose deceased husband brought back binoculars (I think Zeiss) from World War II. She had the Swastika removed before she brought it in for her classes to see.
My friend’s father served in WWII (I never met him). He was in the Signal Corp. The father was Jewish, but he worse an SS ring he took of a dead German for the rest of his life.