Make a real splash with the Barbie rainbow lights mermaid doll. Dip this Barbie doll into water to see her mermaid tail glimmer with colourful lights ... We computed the price history for the Barbie DHC40 Rainbow Lights Mermaid Doll with Amazon price historical data. This item is manufactured by Barbie. It is sold in the category Toys & Games. Amazon have it for sale at 21.60 £. We noticed a higest price of 22.99 £ and a lowest price of 10.39 £.