I used the "Oceanos" bulky handspun wool from this site:
It is so soft. I wanted to make something useful with this yarn so I could see if it would be soft enough for a sweater. It is. Now I just have to decide what color I want for a sweater.
I got some of the Azul Marino and Alphalpa yarn from this site too, and I think I'll probably make another one of these scarves with it.