He’s being discreet about it.
Not the most surprising of news, but Christopher Walken is now dabbling in the severed hand business. In Martin McDonagh’s play A Behanding in Spokane, Walken is currently playing a psychotic one-handed man in pursuit of the appendage he lost 47 years earlier. Of course, the lines of reality and fiction have blurred for the actor, and when he would normally shout for more cowbell, he’s now shouting for more hands.
Walken is hoping the production will gift him with hands that he can keep in a special "souvenir" room he has set up in his house/dungeon. Not one person has seen the inside of this room and lived to tell about it. It was once believed that Natalie Wood accidently stumbled into it while looking for the bathroom, but she never revealed her findings. We all know how Walken took care of that… (Vulture)