Things I've found in the trash:

Bianchi Brava with full Shimano 105.
Old Urago with NOS early 1960's Stronglight French threaded headset, beautiful 1960s French hubs, and Ideale leather saddle
Vintage Normandy Flip flop track hubs (English thread)
Various rack and parts, including front wheel on my beater... I forget them all.
1920's cruisers (pair) with skip-tooth chains and various other cool vintage crap on 'em


And I don't even dumpster dive, I just walk my dog thru RVA's alleys.

Guess I shouldn't start dumpster diving, I won't find anything...