How do I fix this? The suction cups are no longer holding and I dunno how to remove them since the rubber goes pretty deep, like it's all one unit. Do I dig them out and glue in new ones with raised back? These are the kind I'm talking about to replace them: http://www.google.com/imgres?q=suct...143&start=0&ndsp=14&ved=1t:429,r:13,s:0,i:171
