Barbie Signature King Ocean Ken Merman Doll. Barbie Signature introduces underwater royalty, King Ocean Ken doll. This mighty ocean-dweller enchanted Barbie fans and became the crowdsourced winning thematic to go from concept to doll. Emerging from his aquatic kingdom, this collectible Ken merman doll wears gleaming rose gold colored armor featuring a shell-encrusted breastplate, spaulder shoulder armor and bicep armbands. His regal head adornments and iridescent fins are perfectly suited for a ruler of the sea, and articulation allows for endless posing possibilities. Includes ...