Hi Theresa,
The best thing about the Walt Disney World Resorts is that you can celebrate birthdays any day of the year. Just like Alice in Wonderland, Unbirthdays are always welcome. If you are okay with celebrating an Unbirthday, here are some suggestions.
When you make an Advance Dining Reservation, you can say you are celebrating a birthday. At the restaurant, you may receive a free dessert, an autograph card or other pixie dust. You could order a cake for them from the Cake Hotline at 407-827-CAKE. There are lots of choices for you to choose.
You can do an in-room
celebration or head to Town Hall in Magic Kingdom and other locations in the parks to grab a celebration pin to wear.
You can also schedule a meal with their favorite characters to celebrate the day!
Wishing you a magical vacation!
Beth