I love the dancing side, and saw this amazing video and was inspired to make my own:
So a quick trip to the fabric shop and here we go:
1) Cut fabric triangles:
2) Sew up edges.
3) Pull chain through all thr way down leading edge and some way across the base, leaving some "flap" but making it hard for it to coil up. I used a safety pin to pull it through.
4) Sew chain on so doesn't slip while spinning.