Frozen Elsa and Anna Mermaid Barbie Dolls with Barbie The Pearl Princess Color Changing Mattel Barbie doll with color change hair and mermaid tail makeover. Disney Frozen Princess Anna is dressed as mermaid Ariel from Disneys The Little Mermaid with a purple sea shell top and green Barbie Ariel mermaid fin. Elsa also has an Ariel Mermaid Barbie tail but from the 1990s. Elsa has Frozen ice powers and so gladly changes Barbies hair color. The Barbie doll is a perfect bath and pool toy. The Barbie the Pearl Princess doll changes color hair and flips her mermaid tail.