I have a couple multirotors that use a mobile phone for the controller and FPV screen. Due to a spinal injury I have difficulty holding my phone in the required position & dropping the phone is not very safe when flying.
I have found this very useful for watching videos, playing games or any other tasks that require holding the phone for extended durations
0.2 layer height
3 top & bottom layers
I add a layer of ducttape or similar to prevent movement of the phone to prevent scratches.
My original 123design are included for modification for different devices