I was just reminded of it earlier today myself... linking to the Tor.com post because its a pretty good summing up of the auction, plus it has links to how to bid and stuff.
The Con or Bust auction
has a wide variety of nifty things up for grabs, including many autographed genre books and even Tuckerization in a novel by Katharine Kerr or N.K. Jemisin (bidding on that last is already at $600, though. Great for the charity, not so much for pockets!
), handmade jewelry, baked goods, assorted odds and ends. Take a look-see.