I pulled up a glass top table from the bottom of a lake (with surface support). The story behind this one was that the table was sitting on top of a houseboat (the upper deck) while tied up to a dock. A storm blew up and blew the table off the deck, over the dock and into the water. It must have hit just right because the glass was intact. One year later my dive partner and I came upon it.
Same area i found a big MAGLITE. It had been dropped about a year earlier in 30 ft of water. Brought it up. cleaned it. and changed the batteries....the damn thing still worked. Not bad for a non-dive light.