This idea is the cutest for the princess in your life. Whether your princess is 5 or 50 they will absolutely love these cute cupcakes. Find cutouts of their favorite Disney princesses, or all of them, grab a large petal tip for your frosting bag and make this amazing idea from Erica's Sweet Tooth.
Stick with the classics or branch out with some of the newer princesses. Personally my daughter would be looking for Merida and Rapunzel to be in the mix of cupcakes. Laminate the cutouts if you wish to use them again next time, or as puppets for after the cake.