I'm a yarn snob of sorts. I don't like the fluffy stuff. And now you know how I feel about knitting with railroad yarn (even though the scarf came out beautifully, if I do say so myself)... I like natural fibers and really soft wools. I don't like the scratchy itchy stuff, and I'll even turn up my nose at some cotton blends. At the same time, though, I'm quite happy with a $2 ball of dishcloth cotton. I care more about how it feels when I knit than how much it costs.
But there is one thing that I just cannot bring myself to try: Possum.
I don't know -- maybe I just have too many memories of these feral creatures creeping around my house when I was growing up. Nocturnal, vicious, sneaky... I just can't imagine wearing anything made of this fiber. Yick.
How about you? What won't you knit with or wear?