Disney Princess characters are often favored by girls. most of them want to decorate their lovely room with disney princess character. If your daughter want disney princess theme to be a part of their room decor, the most easiest way is use wall decals / wall stickers. Bellow you can see some of Disney princess wall decals applied in girl room, hope they can give you ideas how it will be apply to your daughter room.
there are still many Disney Princess wall decals sticker that you can get in here :
Disney Princess Wall Decals Decor Full Collection