I have my uncle's commemorative gun from the Minneapolis PD, it is a limited-edition .357 S&W that has its own special case, numbered, etc... Obviously never been fired, though I thought about getting some rounds for it in case of some bizarre situation where it became my back-up gun at home.
He was childless and left me all of his police gear, (I asked for it and he was touched that I was so interested in it). My other old bachelor uncle, his little brother, has his service gun as a home protection piece but I'll get that some day.