More and more Live Cases are becoming available, bringing a wide variety of phone protection to suit most aesthetic preferences. In keeping with this, Google announced the En Masse line of Live Cases in collaboration with the multi-artist collaborative group EN MASSE, who specialize in large-scale, "spontaneous" drawings.
There are six to choose from, each merging black and white mural-sized art with phone cases. As usual, you can zoom and rotate the image to create the perfect look. En Masse is meant to represent togetherness and unity, reminding people of their dreams. While I think that whole message went over my head, I will admit that each case is fun to look at.
As usual with Live Cases, companion live wallpapers are included with each one. They will run $40 USD a pop and are available for the Pixels and the Nexus 5X/6P. Check out the source links below if these interest you.