Created and Rendered in GroBoto 2.1

I only discover what these things are as I build them. That said, I can imagine this being some sort of autonomous construction platform -- spooling out the framework of an artificial planet (perhaps using raw materials from the nearby planetoid).

A couple of AutoBots -- some detailing done with BuildBots.

GroBoto Tools/Features: AutoBots, Bot Object Strips, Sky Gradient, Stars, Self-Illuminated Textures, Outline Mode Rendering, In-line Image Adjustments.