oldskull_ i just got back from walmart............had to buy some myself. you can use one as a frickin plunger for your toilet...................damnit man.
Cut old one out with screw driver or knife. I used a thin nose serratd pliers to squize the base of the suction cup and stick it in the hole. Takes 5-10 minutes. May put some glue to keep it in place
In relevance to this thread... Does anyone know how to have a passenger pad or pillion pad on the rear fender that won't leave the foggy suction cups marks on your paint?