I added a few Tapo Cxx series WIFI indoor/outdoor video cameras (C236 and C216). I did not want to use screws, so I needed a backing plate with enough surface area to permit using servo tape (rubber cement like double sided tape) for a non-permanent installation.
The backing plate is attached to the camera using 12mm M4 cap head screws. The backing plate allows use of two pieces of 1" tape. The height of the plate end above the camera mounting screws helps prevent the tape from being pulled away from the mounting surface by leverage from the camera center of gravity. The thickness of servo tape helps with adhesion to rough or textured surfaces.
I used ASA for UV and weather resistance.
.STL, .STEP and Fusion 360 source files are provided.
The author marked this model as their own original creation.