The Wicked Witch’s flying hat just sold for $575,000

The Wizard of Oz (MGM, 1939), Margaret Hamilton

Margaret Hamilton’s screen-worn Wicked Witch of the West hat — the actual pointy black cone she wore while cackling through the skies of Oz — sold at Heritage Auctions this week for $575,000. The hat comes complete with its original 22-inch elastic chinstrap, the one that kept it strapped to Hamilton’s head…