Hello there,
Thanks for the inspiration. I know this post is old but i would like to say job well done. After days of searching trying to find a one of a kind case to put a pi in i decided i liked your idea the best but i put my own twist on it. I used a pi 3 slimmed down and put it inside an xbox one controller. Unfortunately the controller doesnt have the same space inside so the controller had to be gutted. But do to the pi3 having wifi and bluetooth i opted for a console theme where i use a wireless xbox one controller with it.