Unfortunately some of the cases aren’t available for sale at this time, but Google is adding the HP Chromebook 11 to the list of devices with cases for sale. Nexus 5 owners will also be able to buy the black LG QuickCover for $37.49. Otherwise they can buy the bumper case for $26.24 in one of 4 colors. For those who own a Nexus 7, a case can be picked up for $37.49, or you can buy the sleeve for $22.49.
Source: Google Play