Flexible & adaptable phone case

I recently thought of an incredible idea for a product and wondered if it is already on the market. No surprise the product exists but I'm yet unable to find the exact ingenuity match of the product I imagined. So here goes... I wish to print a universal sized skeleton framed type mobile phone case that has a finger ring holder attached to the case. The finger ring holder has to be completely agile, having the ability to do 360° swivel, contour slide, lock and fold-in when not in use. The finger ring holder may also be able to extend on a short cord.

Any CAD gurus or product designers interested on working with me on this project?

I'll try to create a hand drawn mock-up of the product in a next post.

Thanks!