Could you help plan a child's birthday party?

I think a wizards of waverly place theme would be the easiest. Does she also like harry potter? You could buy some cheap glittery capes and matching party hats. A cheap silver table cloth covered in glitter. And maybe buy some harry potter snack products like chocolate frogs. Cupcakes with a white and blue icing mix and sugary sprinkles. Not sure about games at 9. Lots of kids enjoy flashlight tag at night, and you can sometimes manage that inside. Also, get a movie, like ever after? or a waverly place tv show collection?