Hi Kiylie!
Thanks so much for stopping by with your question!
What an awesome DOUBLE birthday celebration you're going to have at Walt Disney World Resort in 2018! Your sons will have an amazing time celebrating their birthdays together at the most magical place on earth.
You'll have no trouble picking up Celebration Buttons for your boys to wear to celebrate their special days. Buttons will be available when you check in at your Resort hotel, so they can begin wearing them from the moment you arrive! Buttons are also readily available at Guest Relations at all four theme parks:
Magic Kingdom Park,
Epcot,
Disney's Hollywood Studios and
Disney's Animal Kingdom.
You'll be amazed at how many birthday greetings and wishes they'll receive from Cast Members, and also from other Guests. You never know when they might even get an extra bit of pixie dust - my daughter felt like a princess (or a celebrity!) when we celebrated her birthday at Walt Disney World in September.
Thanks for using the Disney Parks Moms Panel as a planning resource for your upcoming vacation. Please let us know if you have questions as you continue to make plans - we're happy to help!
Have a magical day! - Diane W.