The colours are dictated by the details in the felt balls. This one was originally finished with a string of seed beads, but I decided I preferred to use fibre--hand twisted rayon embroidery thread teamed with handspun wool. I'm a litttle unsure about how the hot pink beads will behave in the rough and tumble of real life. They are metallic paint over glass. So this one will remain a prototype. I feel that I've found the balance I want between beads and fibre, though, so it was worth the effort.
And I've tracked down an initial source of white felt balls. They are on their way across the country to me now. I hope they will be in my dyepots by early next week. That will give me more control of my colour options and help me to put in the personal twist that's so important in what I make.