Make a real splash with this magical light up barbie mermaid doll dip barbie rainbow lights mermaid doll into water to see her mermaid tail glimmer with colorful lights inspired by a sparkling rainbow press the button in barbie doll39s necklace to switch her to quotonquot mode and dip her into the tub or pool to activate the light show bring the magic ashore you can push the button in the doll39s necklace to enjoy the light show without water a rainbow tail attached pearly belt