Hello Eugenia!
You are going to have the BEST time celebrating TWO birthdays at Walt Disney World!!! WOO HOO!
First, I would make reservations at any of the Disney restaurants to have a magical birthday party! Depending on when you are coming, you can make online Disney Dining reservations 180 days in advance by clicking
HERE! You can also order a specialized cake for their special day by calling the Cake Hotline at 407-827-2253. They need 48 hours in advance to make a personalized cake for your children.
Second, if your family is staying at a Disney Resort, you can also surprise them with something special for their birthday right
HERE!
Third, make sure you tell a Cast Member at check-in that you are celebrating some very special birthdays!!! Your children will then receive a birthday button that they can wear on their birthday! I promise they will receive so many "Happy Birthday" wishes from Cast Members and guests! If you are not staying at a Disney Resort, you can also pick up a birthday button at Guest Services as you enter each Disney Theme Park.
I hope this gives you some great ideas! If you have other questions, please let me know!
Have a MAGICAL day!