Howdy,
Sorry for entering so late. I wasn't sure if I'd have time to compete in this challenge (and I still don't...) Anyway, I just sort of started to model something and it evolved so I thought I'd post it anyway.
My concept is a planetary rover and research base, like something that you might send to Mars or the Moon for research. I envision that this thing would be huge. 50 people would be able to live and work inside it.
My inspiration is an ant...
Anyway, here is my progress so far.