If you have a couple of hole punches that are a good fit for the holes in the cup you can try wedging them in and then putting a chunky screwdriver diagonally between and twisting CCW. Provided the punches dont slip you should get enough leverage to get the cup moving.
If you have a couple of hole punches that are a good fit for the holes in the cup you can try wedging them in and then putting a chunky screwdriver diagonally between and twisting CCW. Provided the punches dont slip you should get enough leverage to get the cup moving.