This is a sponsored post by Mattel™, but opinions are all my own. Barbie™ is starring in a new movie, Barbie™ & Her Sisters in the Great Puppy Adventure, this fall! My girls and I had the opportunity to preview the adorable movie this weekend. To make the party more fun, we baked these treasure map cupcakes! You’ll see just why we made treasure map cupcakes below. What could be more fun than treasure, puppies, adventure,