Abstract: A skin structure in a doll providing simulated body temperature by fluid circulation comprised of two layers separated by studs forming passageways between said layers for the circulation of fluid of the desired temperature to impart on the surface of the doll a temperature approximating body temperature. The controlled temperature fluid may be provided in a reservoir so that the fluid can be circulated to and from the skin structure. The outer skin layer is preferably resilient. The studs are appropriately spaced between the layers and separate said layers. Other creature representations may incorporate the novel spaced layer and stud passageway construction of the invention.