If located in or near Buffalo - You know about the Fish Auction that takes place every so often.
The next auction is November 13th in Boston, NY (At the fire hall). From the 90 - 219 get off the Hamburg exit (Presuming you are coming from Buffalo)
It seems to go all day - however I tend to arrive at 3. It is unpredictable in what you will see, but something may go for $20 at one point, then the same product/fish will go for $3 later on...pretty fun - lots of random unique things...some common everyday items for cheap - lots of nerdy people to pick on :-)