I mostly remember reading about them in various 'alternative reality' AKA weird stuff books over the years rather than online, so sorry, not really. The main other OOPART I can remember right now is the Antikythera device, a sort of 'clockwork computer' found in the wreckage of a Bronze Age Greek vessel.

Really, just look for any of the Bermuda Triangle/Atlantis books by Charles Berlitz and you'll find tons of these references.