Made a flipper case by combining the TPU case (https://www.printables.com/model/237502) with the faceplate from https://www.printables.com/model/351398). there is a very few layers over the buttons, making them less "clicky" and more "thocky". (similar to the electrical tape "mod" popping up on reddit). I didn't notice any reduction in signal strength. I also removed the access to the micro SD card.

Dec '23 update: I'm revisiting this file to make some improvements. raised the button protector up, giving it more layers, readded micro sd card slot,*intend to remove pogo hole on the bottom, and add hole on the side to slide the flipper in easier. (coming soon™)