Ellie and Ainsley have absolutely loved playing as pretend fairies. We have fairy wings, tutus, and a wand which they take turns wearing/holding. Zach will fly them around and they go CRAZY over this. Both of them cry when it's their turn to take off the wings. It has been a lot of fun to watch, Zach even enjoys playing (although I restricted him from wearing the wings).
Here is a video of one night while we were playing, Ainsley is running down the hall in her wings:
Ellie is wishing for candy because one night I pretended to be the fairy godmother who gave wishes. Ellie wished for candy and her wish came true.