little exercise challenge that we put on at work. here was our mission brief
The diminutive, metal-based, shell-covered race. They have strange and unusual senses. This race has tentacular limbs. They are lithovores. They discharge electricity as a weapon. Biologically they are inclined to be warriors. Their major technical achievements are in cybernetics. They have a very ritualized culture. They come from a different level of reality.
I don't think anyone followed the diminutive (tiny) part of the challenge, unless you throw this creature in a world 5 times bigger then earth :P