Disclaimer: Please don't make this a thread about atheistic Evolution vs (six day) Biblical Creation, there are other possibilities and combinations to consider.
Some examples from a National Geographic article:
The science of biomimetics including,
-More efficient streamlining based on the structure of the boxfish. (Mercedes study)
-The thorny devil lizard, in effect drinking water through it's scales, actually whisking water via channels between it's scales to it's mouth. (for the irrigation of arid enviroments)
-burs inspired the design of velcro
-the waterproof properties of the lotus leaf is self-cleaning and has inspired "Lotosan" paint, said to better resist water and stains.
-sharkskin scales inhibit the growth and attachment of barnicles and is being studied for ways to treat the hull surfaces of navy ships to make them cleaner and faster.
And of course, the streamline shape of the Mako Shark in inspiring the Corvette.

Of course there are many other examples of human invention being inspired by Natural (Intelligent?) design.
Granted, this is not proof of a creative Deity, (evidence, perhaps) but for debate, isn't it ironic that some very intelligent and creative people deny design in Nature while at the same time looking to it for inspiration?
And though National Geographic did not address Theistic or Deistic implications, are these examples evidence of at least a Deistic interpretation of the natural world?