Customizable Live Cases for the Pixel and Pixel XL land in the Google Store
The Artworks Live Case family allows customers to have their pick of various images created by established designers. Once you select the base design, you can then proceed to edit it by resizing the model and customizing the physical position on the case.
If these preselected models don't satisfy your needs, then the Photos Live Case family might be the better option. Upload an image, edit it, then place it wherever you want it to appear on the case.
If you want your Pixel or Pixel XL Live Case to represent your geographical position, then the Places Live Case family is the right one for you. Choose any location on Google Maps, edit the visual style, and then have the end result printed on the case. Unfortunately, Places Live Cases won't start shipping until early November while the other two case families are ready to ship now.
source: Google Store
Things that are NOT allowed: