All those bits of rubber are now blobs of goo--and tough as the devil to get cleaned up,
much less replaced.
Try GooGone and a host of other things. Can't say for certain but I have to believe
there's some way of removing it w/o too much fuss. Tape residue and I realize it's
entirely different comes right off with what used to be called Afta, but they were bought
by someone years ago.