Luckily I'm a real genius, and after a long research and a lot of examinations, diagrams, computer simulations and testing I've came to the design of this high technological piece of engineering! With that gear I'm able to make my camera looking forward!! That's extraordinary!
... all right, I'm kidding, but because I'm not able to abandon a project halfway through, I'll go on ;-)
Oddly as you can see I've two holders for the camera, but neither of the two can be mounted on the cap in the right direction. Except screwing the base of the bigger one on the cap peak... but I don't want it permanent.
To do that I've cut a piece of plastic frame about one and half inch long.
You can use a bit made for the electric screwdrivers, which is easy to keep in hand and to turn. Make tho holes about at the same distance from the borders.