Clamshell bluetooth gaming cellphone case design?

I really feel like I'm going loopy, searched in every single place and has nobody provide you with a slick design like this but? (apologies for the AI nature of the picture)

You would have the cellphone case higher part bought individually to match your cellphone mannequin after which clip it onto the ridged hinge of the bluetooth controller making it a clamshell case. Don't plan on gaming as we speak? simply unclip the controller on the hinge and you’ve got an everyday cellphone case.

Because the controller width wouldn't be capable of match each cellphone dimension; have it designed barely smaller than most telephones and together with the acquisition of the cellphone case you get a rubber bumper to snap across the fringe of controller to match the width/top of the cellphone case (the thumbsticks would additionally need to be recessed or DS type)