Anyways, I set out to work on the design for this cake and usually when I make a themed cake, I like to know more about the person's hobbies, favorite timepass etc., so I can incorporate it in their cakes. So, the other things that the husband mentioned about his wife are: She loves flowers, the movie Madagascar, shopping at Macy's and Dillards and of course, the carousel. Finally, the cake was designed to make it look like she is being gifted with all of her favorite things for her birthday.

Red roses for flowers, Macy's shopping bag, Dillards' gift card (seen in the first picture),
her favorite characters Alex and Gloria from the movie Madagascar and last but not the least, the carousel - all made out of fondant and made to be completely edible.
I made the carousel as a keepsake box so she could add it to her collection if she liked. And to add to the surprise, I put a cupcake (actually, I didn't have time to bake a cupcake, its a piece of cake I cut in round shape) inside of the carousel box.
The verdict? The wife called me the next morning and said she was adding the carousel to her collection. Looks like 'Mission' Accomplished :-)