Here's a postcard I received from Rebecca in Zurich. (I belong to Post Crossing.)
The picture struck me as some weird kaleidoscopic giraffe part. I flipped the card over to read the description. It said that the image is of Polyplectron bicalcaratum... sounds faintly chemical in nature... but NO! It turns out to be a type of pheasant, and this image is a magnification of the feathers.
Look closer... there are patterns everywhere.