Unfortunately the only place that I know that sold the Mickey macaroons is currently closed. They did have them at the Writer's Stop in DHS.
I have seen them advertised during the holiday season in Les Halles Boulangerie-Patisserie in the France Pavilion. I did not get a chance to try them.
I have also saw them briefly at the Goofy Candy Co in Disney Springs a couple of years ago. But have not seen them since.
I will keep looking for you. I hope we see them soon. After all everything tastes better Mickey shaped.
I hope you have a wonderful day! 😊