Thought I'd see which way market forces would take this thread.
Simple proposal: I have in my possession a genuine safety card from an Embraer 170 - no airline logo on it, because it's not in service - taken from the aircraft following a test-flight on which I happened to be a passenger.
Before you ask - my conscience is clear, because I specifically asked for permission to have it.
Now I don't actually need it. But I figured that someone here might consider it worth having. Anyone interested?
Oh, and I think you should justify why you should have it.