$10.00 Barbie in a Mermaid Tale Merliah Doll features-Inspired by the character in the movie, Barbie in a Mermaid Tale, this Merliah Doll features a beautiful and unique transformation. She is a cool teenager from Malibu, but when you pull her hood down, you find out that she is secretly a mermaid. This special Barbie Doll also has color-change hair, color-change toes and body art tattoos - when activated with cold water.