This little customizable angled case perfectly fits the Eachine TX03 AIO camera. You may have to slightly change some parameters in the OpenSCAD file to match your printer tolerances. The cut on the back-right-side is for the video-in and video-out cables for use with an OSD, it can also be disabled in the OpenSCAD file.
For use with other quadcopter frames, the bottom 'slots' can be removed. That way, you can also print without supports.