Purchase tickets to a Disney theme park.
Make your way to a Disney property in the morning and get your tickets scanned in.
Listen to the speaker when they announce the winner for the day. If you or a member of your party is proclaimed the winner, you will become "royalty" for the day. You and up to five guests will have a Main Street photo session before heading to have a tour of the royal quarters. You will also be named as grand marshals of the Dreams Come True Parade, get to meet Cinderella and eat at her Royal Table and get an after-hours VIP tour of the park.
