Thanks to this doll maker and the artist's emporium for sharing this 6 page photo tutorial on wigging with viscose. Viscose is not a natural fiber like lamb or mohair. It reminds us of a rayon. It is readily available in many colors, including fantasy shades.
In this tutorial you will find lots of information about viscose fiber and how to wig small scale dolls with it, including blending colors together and how to curl it: