THE MAD HATTER

BACKSTORY: A beloved souvenir shop where guests can buy hats; there is also one in Town Square. From the Disneyland website:

Top off a whimsical trip through Fantasyland by taking your pick from all kinds of Disney-themed headwear—from tiaras and princess hennins to Mickey Ears and more. Be sure to put a cap on your purchase by personalizing a hat with your name!