I have more than one friend in my knitting group that dyes fiber, either for fun or for a living. I get my monthly club fiber from one of them, and the other brings in braids she's done every once in a while.
Here's one I bought from her:
This one was large enough that I needed two bobbins (which isn't that much, in the spinning world, but it's a lot for a newbie like me).
My wheel spinning is slowly but surely getting more consistent. I'm sure if I practiced more I'd be better at it by now...