0110-M-P's Raspberry Pi Case is now my goto source as it is designed so perfectly. This is a modified version of that.
Recently I have been working on an enclosure for my 3D printer and Octoprint. I have been integrating several different sensors into the Octoprint Raspberry Pi using a terminal block shield which you can get here https://www.amazon.com/gp/product/B01M27459S. This makes things so simple and clean for connecting wires to your Pi.
I will warn you, this is a snug fit. Typically I design things to slide in effortlessly, but didn't want gaps visible around the terminal blocks; it will slide in though. It is also worth mentioning that I don't know the tolerances on the terminal block boards. I only purchased one board which the openings was designed around.
The feet and bracket in the picture are not part of this remix. They are part of a mounting bracket that allows you to quickly pop on/off anything with a 75mm VESA mount. You can view that HERE.