One of the first Apollo astronauts to "space walk" managed to drop--or let get away from him--a $500 Hassleblad camera. As far as anyone knows, it's still up there, orbiting.

I think this qualifies as flotsam or jetsam. Free to anyone who wants to go and recover it.

By the way, for some reason, there are some 12 Hasslebad cameras of similar quality still on the moon.

Don Firth