Hackaday HalloWing case

One of the goodies from the [Hackaday Superconference](https://hackaday.io/superconference/) was an Adafruit HalloWing. And I thought: surely a [Jolly Wrencher](https://hackaday.com/tag/jolly-wrencher/) case must be made for this skull-shaped circuit board!

So I remixed an existing clip-on case that fits the battery (Thanks DoctorWhich!), added the Jolly Wrenches and printed it out. It came out pretty great. Though now I wish I had some black PLA.