Nice!

I've always wanted to build a computer like the iMac G4, with the half sphere, the arm and the monitor. In my street there was a pebble/rock (the size of a rugby ball, pretty smooth surface) laying around near a tree, and I thought of taking it with me as the base for this computer. It's beautiful stone. I should have grabbed it, because now it's gone.

But it required a lot of grinding and sanding to make it ready. I think pouring concrete is a better option for my idea.

Thanks for the inspiration!