So recently a Thai shoe ware company called "Rayfish" has genetically engineered stingrays to create desirable patterns in their skin, this skin is then turned into shoes.
The shoes are sold for 1800$ a piece and can be designed to fit your needs
The family has supposedly grown stingrays for cosmetic purposes for many generations, and the stingray skin is a traditional material that has been used in clothes, shoes and sword hilts in the Thai culture.
Oh, btw. You can also design your own shoe here:http://www.rayfish.com/index.php?chapter=growsneaker