This is a simple but fairly accurate reference model of the Flipper Zero and its silicone case/sleeve. I made the model for the case, but credit for the simplified Flipper model goes to s0ko1ex.
https://github.com/s0ko1ex/FlipperZero-Hardware/tree/master/Blueprints/Bounding%20box/files
The author remixed this model.
The Flipper Zero model was created by s0ko1ex and the silicone case was created by me using their model as a reference.