I started printing rings for the skirt balls. Thinking about it, I also wanted to have a way of mounting the rings. The original Mini-me used nails for some positional stability, and glue.
I thought I would do it differently this time. I created a ring with a floor in it. I will glue the ball into the ring, but for positional stability I am going to use brads, so I made a rectangular opening to allow the brad to go through.

I have to 3D print about 60 of these to cover any issues I might have.

The picture shows the Styrofoam balls that I had cut and painted previously.
The hole in the centre is to allow for mounting to the side of the skirt.