I had attended a robotics workshop on programming Arduinos. I loved the concept and everything they could do. I wanted to build a case for mine that was large enough to take on expansion cards, so I designed this one. It's about 4" in diameter and 3.25" in height. It has vents at the top to dissipate heat. It also can be tailored to create openings for additional sensors, cameras, speakers, or modules to add. I believe the look is aesthetically pleasing enough that one could leave it on their bookshelf or side table without noticing it as a piece of technology. Let me know what you think. I'll try to adjust the design per input from the community.