Although I made a couple of versions with screws I preferred the clean look of VisualReversal's holder https://www.printables.com/model/593227-govee-rgbic-led-permanent-outdoor-lighting-mountin.
This has a single, hidden screw
So I made a top that sits on top of that and is friction-fit secured. Clicks in place on my setup
For a tight fit YMMV, so try +/- 1%
The author marked this model as their own original creation.