We?ve been able to customize products for a while, but while the result is always “custom” it’s not always so unique. Rayfish Footwear is looking to change that by offer consumer customization, not by dye or stitching, but at the genetic level. On their site, you can mix and match various patterns of stingrays, and Rayfish will combine their DNA to match the design of your choice, actually growing you a genetically manipulated pair of stingrays to harvest as the leather for your shoes. The colors are bold. The patterns are intricate. And every pair is inherently unique. And weird.