This Battlestar Galactica t-shirt features an image of the head of a Cybernetic Lifeform Node.

The Cylons are a race of sentient beings that were conceived of as military robots by Graystone Industries for the Caprican military. Cylons entered industrial and domestic sectors, and over a period of six years became widespread across the Cyrannus star system. They launched a cataclysmic slave rebellion against their human masters, which became a genocidal war for both parties.

You'll have everyone saying "By your command" when you wear this Cylon Head Shot Battlestar Galactica T-Shirt!