This is a snap fit case for the Hydrabus [https://hydrabus.com/?v=7516fd43adaa]
It has side cutouts for the buttons and microSD slot and lightpipes for the USB and PWR leds, with the idea that you print the top with translucent or a light color plastic.

The HydraBus (hardware) with HydraFW (firmware) are used as an open source multi-tool for anyone interested in learning/developing/debugging/hacking/Penetration Testing for basic or advanced embedded hardware. [https://github.com/hydrabus/hydrafw/wiki/Getting-Started-with-HydraBus]