How about the conspiracy theorists funding a probe, sending it to the landing site and taking samples of the human waste product the astronauts allegedly left there. Back on earth they can do a DNA comparison with the surviving relatives. They can make a movie out of it and call it "first poop in the moon".
Inconclusive experiment; poop DNA destroyed by solar and cosmic radiation.
Well something pooped there!
Poop could be deployed by unmanned probes.
They would hardly have pooped in the open, would they? Not very private. Probably squatted down in a convenient crater where the moon-poop would be protected from radiation.