This is a simple Eachine VTX03 20x20 stack tray. It holds the VTX03 with a single zip small zip tie, with some room to access the button with a small standard screw driver, and a cutout to pass wires through. I made this after trying to print a couple of the options found on here, and they were far too fragile, with far too much needing supports. This prints without supports, and it quite sturdy.

I made it in M3 and M2 flavors. I've printed and used the M3 version, but the M2 version should work the same.

Print it in PLA, PETG, or TPU.