Repair advice lenses
You should be able to get under the rubber and just roll it back on itself enough to run a peice of double sided sticky cellophane tape and then just roll the rubber back into place.
Ron - 'We don't have time to go take pics this afternoon Carl.'
Carl - 'What do you mean? It will only take 1/1000s.'
'Keep your eyes looking forward. However, glance back now and then to see where you've come from. It will put a smile on your face.' ~ brandrx