Frozen (Movie) Gift Ideas for Girlfriend?

Ok so question basically says it all my girlfriend (and I will even admit it) loved the movie frozen. We both like Disney stuff and her birthday is coming and I would love to get her something original. I have made her gifts before so I am open to getting creative. If any people have cool ideas they have found on pinterest or other websites would be aweomse. Oh and I know you cant put a price on love but you can put a price on college so not super expensive if possible. She likes things that are more personal anyways. Lets say a budget bewteen 30-70$ ( I have to really budget her birthday is the same week of valentines day :/ best idea/ideas wins!