Alpaca yarn. Soooo soft!
I was working on it while my daughter hit the pool in Zion National Park, Utah. I was hiding from the sun under a nice umbrella when someone asked me if I was working on a Slytherin scarf. Why yes, I am working on a house scarf. Then she gasped and said "I'm not sure if I am okay with that?!? Don't you know that's the bad house?" I know too many cunning Slytherins to answer that.