Hello Christy!
I still remember the gleam in our girls' eyes when their transformation was complete at
Bibbidi Bobbidi Boutique! They were dazzled and enchanted by the work of the Fairy Godmother's Apprentices. It is entirely understandable that you would want to capture those moments with some photos.
I took a peek at the hours of
Sir Mickey's the week of your stay. Each day, this shop appears open until 9:00 p.m., which aligns with the Magic Kingdom hours. This should allow plenty of time to capture the magic of your granddaughters' princessification. In my experience, most shops in the Magic Kingdom remain open for quite a while, even after closing, to allow for those end-of-night purchases.
Pro planDisney tip: If you haven't done so, I recommend purchasing the
Disney PhotoPass Service. This will make catching those magical moments a breeze!
See ya real soon!
Anne