These geometrical designs are made using the phototransfer technique by Irene MacKinnon from curlygirldesigns.etsy.com.
Here is her story: "About a year ago my sister gave me a beautiful pendant with a photo transfer on it. I was so impressed with this technique I started experimenting with transfers on collages and on marble tiles. Then I read about polymer clay and transferring images on to it. Once I tried it I was hooked and now love working with the medium. I love experimenting with clay and trying new techniques".