I don't think that I would ever use a 100% cashmere fiber. It's too delicate and won't hold it's shape very well. I usually use a cashmere/merino wool blend so that it has some more stability but still gets the softness of the cashmere.
OTN: Jeckyl and Hyde Hat, Shetland Shortwrap( )
FO: Lacey Stole, Library Capelet, Dead Fish Hat, Tree Bark Scarf