Disney Princess Favorite Moments Mermaid Doll 7-Pack - The Little Mermaid Sisters Disney The Little Mermaid Sisters - This is the only place in our Disney Princess line where Ariel can be found with all six of her sisters from the movie The Little Mermaid! Each mermaid sister features a color-change top activated by cold water. Girls will love recreating their favorite movie moments with this magical collection of seven mermaids.