“Natural fibers are made from plant, animal and mineral sources. Natural fibers can be classified according to their origin. “ “Vegetable fibers are generally comprised mainly of cellulose: examples include cotton, jute, flax, ramie, sisal, and hemp. Cellulose fibers serve in the manufacture of paper and cloth. Animal fibers generally comprise proteins; examples include silk, sinew, wool, catgut, angora, mohair and alpaca.” (http://en.wikipedia.org/wiki/Natural_fiber, 1/28/2009) 

Chicken Feathers
Fibers
 
Licuri Fibers   

Materials   

Silk Fibers 
Sisal Fibers   
Wood Fibers