My best guess would have to be the ingredients in an American hot dog. They're "all natural" right?
I jest.
I'm of the "not random" camp. The implications and design opportunities are both tremendous and exciting.
Zoom in really close to a single celled bacteria. Its flagellum mechanism has all the complexity and brilliance of an electric motor, complete with rotor and stator, battery system, pressure hull like a submarine, sensors...
Zoom out really far, looking at the moon and stars. At first glance they seem chaotic, and changing every day. But look long enough and you begin to see the patterns of constellations. Even longer still and there is enough clock-like precision in their arrangement and motion that ancient and modern skilled mariners (and yes, even current military ballistic missiles) use them for jam-proof precision navigation.