It is run like a union with each individual being the sole member of their "local". I am a proud member and I am extra proud to be helping out at the book fair. I will be there with my spindle, just so you know.
And just so this isn't an image-free post, here is a picture I took on a recent trip to Hamilton, Ontario. We were on a desperate search for sandals for Lucy before a wedding. All we could find were these:
We declined. But later, we did see a brave soul walking around town with a pair on. More power to ya, lady!