I don’t know if you would categorize these as oober weird; however, in addition to the "placed items" in several dive sites, I have found a fire extinguisher, a plastic easter egg, a 14k gold earring, a man’s wedding band, a penny, a set of Foster Grant Sunglasses (I wear them on shore now), aviator style sunglasses (I placed them on a picnic bench for someone else to have), a 2lb solid lead weight, a dive light (covered in silt), a set of brass knuckles, an umbrella, and several fishing lures.