You can also not wear any outfit that resembles a Disney character (unless it's a formal costume sold by Disney) and anything that covers the face.
I saw this at Epcot on my last visit. One girl, in her twenties, wore her homemade Princess Jasmine outfit. They would not let her in the park. She was complaining up a storm outside guest relations.
Aside from the fact that the outfit was hideous, and by wearing it she made it look even worse, it really did show too much skin (even if it was covered in sheer material, it was see through).
I think her friends finally went in and bought her a shirt and shorts and she ended up changing.