I have one of those furry black Soviet Army hats a former girlfriend brought back from a trip to East Germany--when there still was one. Unfortunately, it's a bit small, so I can't really wear it. It even has a metal pin with a red star and hammer and sickle.
Man, that would be so cool to wear that around and observe people's reactions.
Also, when I was about 10 years old, my grandparents gave me a tape recorder. I turned it on "record" and went around asking people, "Are you or have you even been a communist?" If I didn't like their answers, I put them on my "black list."