Xbox 360 Controller - Fix RB/LB bumper button

I had an unresponsive RB bumper button on one of my xbox360 controllers.

Came accross this youtube video, where it is fixed with some tape: https://www.youtube.com/watch?v=XsSP0E2knxE

Figured it would be more elegant to print a part that can simply be placed or glued on, instead of the tape.