I made a hanger/holder for my WD Elements disk used on the TV. It uses one of the M6 Mounting screws on the back of the TV.

I made it customizable so you can use it for any device that you want to hang behind your TV or somewhere else.

The provided *.stl is the one I printed and fits the WD Elements 2.5" HDD.

If there are problems with the parametrization please let me know.