Quoted from jibmums:Not possible, plastic ring on base fits through hole in playfield. Since it's visible on top of the playfield I need to find a yellow one, or my OCD would kick in every time I saw that blue ring under the bumper cap. I'll just have to check on this fix every so often to make sure it's holding up. Anyone parting out an old DE?
I do have a complete pop bumper assembly from a parted out DE Simpsons.