Hey there, Hi there, Ho there, Eric!
Welcome back to the Disney Parks Moms Panel. I'm so happy you plan on celebrating the 90th birthday of the big cheese himself. Mickey's exact birth date is November 18, 1928. Growing up, we always celebrated this special day since my brother shares the same birthday. It made us feel like we had a little connection to magic our whole life.
Last year for Mickey's 89th birthday I was actually present in Disneyland Park on November 18, 2017. While supplies lasted, Guests were given a complimentary "Happy Birthday Mickey Button" at the park entrance and there was birthday-specific merchandise sold in the parks and Downtown Disney District. Disney PhotoPass photographers also had a "Happy Birthday Mickey" prop that you could take pictures with in various locations in the parks to remember the occasion. There was even a special cavalcade honoring the birthday boy down Main Street, U.S.A. I felt like it was really special to be in the parks on this day, and it's an experience I'll never forget.
I would keep an eye on
shopDisney.com as well as the
Disney Parks Blog for announcements regarding specific merchandise or special events, but I can guarantee that there will be a lot of celebrating at the Happiest Place on Earth for Mickey Mouse on this day.
See ya real soon!
-Jennifer