This is a case for the Microchip MPLAB SNAP v1 debugger. Grooves on top of the case hold a printed label. A PDF with 3 designs and 5 colors is included so you can pick your favorite, and a STEP file is provided for customizing or remaking the case.

Assembly

Print the labels and optionally laminate them. Use a pin to punch through the corners marked with dots on the print — these act as guides for your cuts, helping you position your ruler accurately.
For better visibility of the LEDs, insert two small pieces of transparent filament into the holes on top of the case before attaching the label. To flatten the tips so they guide light more effectively, heat them and press against a flat surface.