Here it is, the Rugged Pill SeedSigner case.
Single extruder and MMU Versions included. Print the Thumbstick and Buttons from TPU (98A) for the best handling experience.
For the MMU version, use 0.2mm layer height, as the model is designed to have three colored bottom layers.
Have fun printing and building, and don't forget to post a make!
A word of caution, the Rugged Pill is a tight fit, I highly recommend watching this very short video on how to assemble it without any accidents.
Don't have a 3D-printer? You can buy a readily printed version and the needed hardware here.