For pilots and others building their own ADS-B receiver using the Raspbery Pi based Stratux project, here is a popular case designed by Helno. See more about the design and the designer here: http://www.thingiverse.com/thing:1016829.
Makers can print these on demand as needed with no markup; after ordering my own, I made it available for others to do the same (I make no profit).
This is the BASE ONLY - you will also need to order the top to have a complete case. See the Stratux project page for assembly directions.
Directions:
1. Select the material you want. I recommend Strong and Flexible Polished (similar to ABS). Any metalic materials or finishes may impact reception, especially the GPS module (if installed).
2. Select your color
3. Press order
4. Assemble and Fly!