FTC Gamepad controller cover
thingiverse
This once installed will prevent you from accidentally hitting the middle logitech button which will close the FTC app.
Download Model from thingiverse
With this file you will be able to print FTC Gamepad controller cover with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on FTC Gamepad controller cover.