Profiles in History is having an auction entitled Icons of Animation on December 17. While the majority of items are out of my price range (maybe all of them actually), you can download a catalog of the auction for free.
Even if you're not in the market to buy, the catalog is a mini history lesson by itself. It contains art from Disney, MGM, Warner Bros, Fleischer and Hanna Barbera. There is work by Bill Tytla, Fred Moore, Carl Barks, Bob Clampett, Virgil Ross, Irv Wyner, Mary Blair, Preston Blair, Gustav Tenggren, Charles Schulz, etc. There are worse ways to spend time than by paging through the download and admiring so much beautiful stuff.
(link via Disney History)