Some actors and actresses posess the props that made them famous.
Arnold Swarzenegger displays his Conan Sword in his den, and Robert Englund similarly “owns” one of several Freddy Claws (he was once stopped at an airport for possesion of a weapon. He had a hard time convincing the security detail it was only a theatrical prop.)
In the opening trial scene of Sleepy Hollow, A prisoner is shown in some kind of full-body “cage” of steel bars. Johnny Depp kept that prop for himself.
Whenever they show a portrait of some character’s ancestor (which is obviously painted after the actor playing the character), I’ve always wondered if they give that portrait to the actor after the production is over. If that happens, it always struck me as a cool fringe benefit: “Here, have this painting of you as a medieval lord/Victorian poet/(fill in the blank).”
Not done of her as her “ancestor,” but Lea Thompson has the painting done of her from Some Kind Of Wonderful. I used to work with her sister, and she said it was in her living room.
I read somewhere that Lou Costello was notorious for taking props from the sets. If true, he “owned” a lot of props through theft.
Roger Daltrey kept the giant penis from Lisztomania in his garage.
I recall reading that John Schneider had purchased one of the 01 General Lee cars used in Dukes of Hazzard for about 70K at the time. Of course, his career went nowhere for a long time after that, so I think he sold it. But, he still owns and races a classic Dodge Charger.