I dropped a rod from a hydraulic cylinder off at a machine shop to have some repairs done, and stopped on the way home at the Restore, which was right along the way. I found the following items for $11.00, six of which was the big socket.
Plomb Pebble 1137 DBE 11/16 x 3/4 (the black is hardened pipe joint compound, which comes off easily)
P&C 2825 DOE 11/16 x 3/4
Powr-Kraft (Barcalo) DOE 5/8 x 3/4
Barcalo DBE 1/2 x 9/16
Tru Fit DOE 11/16 x 3/4
Mac C6 combo 1/2
Indestro Super 774S combo 9/16
Import 7/8 combo (for a loaner)
1/2 hex magnetic power socket
10mm T-handle hex socket
Blue Point hex socket, 2-9/16" (1/2 drive socket welded on, but 3/4 square drive is intact)