DIMENSIONAL MODELS
I will always remember this model from my childhood.
My Mother had a special cabinet for glass and china. The orniment that held pride of place there was the same as this more recent fabrication.

I suspect that such shapes are fine tools for meditation when calling upon the multifacited dimentions that geometry reveals.

This image is of the basic 10 spheres model (crafted in optically pure polyresin), with image in-lays and lights.