I like cartoon movie so much, I don't care with my age. I will share some princess or fairy cartoon character as party costume idea. Disney have its own Princess franchise. Disney Princess is a Walt Disney Company franchise, based on fictional characters who have been featured as part of the Disney character line-up. The six original members of the franchise were Snow White, Cinderella, Aurora, Ariel, Belle and Jasmine, Pocahontas, Mulan, and Tiana. Wow, such a great costume idea.
Here I pick for you, some princess costume.
Snow White Costume
You also can pick another princess character such as Barbie.
Choose the suit one, and make your girl happy and proud to wear it.