I personally wouldn't wear them, just as I now wouldn't wear any other insignia I haven't earned.*

If you wanted to display them, a nice shadow box with a description of the unit and the area the unit came from would be nice.

If they're family mementos, then add who wore the badge and perhaps a photo of the person in question.


*(Full disclosure: I used to wear an old US military olive drab field jacket - M65 - that belonged to my mother's older brother. I added patches from the US Army units my father had been in. I also have a US military olive drab 'boonie' hat and I put on a couple of pins that belonged to another of my mother's brothers who served in the US Air Force. But, I never wore a complete military uniform at any time, decommissioned or not, and I was never trying to pretend to be someone or something I was not. I was wearing just those items, at different times. I wear neither of those items any more.)