Who doesn't love Star Wars? When I was about 3 years old there was a phase when I would only answer to the name Princess Leia and my outfit of the day was a flowing white shirt belonging to my grandmother with one of her belts around my waist. On the really good days she would even do my hair in the classic Leia side buns. Later, I switched to the action figures, dolls, and even some Underoos (which are making a strong comeback), and no matter my age I remain a Star Wars nerd to this day.
For more details about this unofficial holiday, visit the Star Wars website: http://www.starwars.com/may-the-4th