Okay, so the outer shell was boring and needed a bit of prettying up.

I was going to put a bunch of pipes around the perimeter and flowing constantly, but while I was ShapeGenning up the peices, it came to me.

I turned the blocks into cylinders... then I shaped them... and I turned them into spheres... made them shiny... added a chrome texture... a touch of glow...

Bingo.

I may do something to that upper row of thick copper blocks.... or not.

I do not want to overdo it.