If you're looking to mount your Feather to a wall orwork surface, you can use the "tabbed wings" version of the case or battery holder. The two mounting tabs have a hole with a diameter of 4mm with a distance of 55.86mm between them.
If you want to have access to the headers, you can use a topper wing to expose them. This topper has a cutout in the exact shape of the Adafruit Feather, so you can connect jumper wires from the headers to a breadboard.
Comments, Suggestions, Discussion!
Did you print one and wanna tell us about it? Do you have any suggestions for a new topper? Maybe you have a specific project that needs a special case? We want to hear about it! Drop us a comment in the Adafruit Forums, we have a dedicated topic there so we can have discussions there.