Antonio, we used to have this chewing gum in Holland too. There even was a "blow the biggest bubble" contest on TV! Don't know if it's still around though.
Belgian submariners have it in their personal equipment
Talk about crazy paintjobs:
Magicpaint does these:
brushed alu (nice, isn't it?)
carbon tanklid on "crazy design" tank
More pics here
They put the parts in a "foil bath" (very thin and flexible foil) and spray it with transparent lacquer.
Same happened once to me. I heated the plastic housing in hot water to make it more flexible and just carefully pushed the mirrorglass in. Make sure it fits right or otherwise it'll pop out very easily.
After rereading Tomsp's post I noticed he meant something else... oh well