I purchased a while back a pair off ebay that had some overspray on them. I just stuck them in the drawer and forgot about them but ran across them again yesterday and it got me thinking, I need to fix these. Now it easy to remove overspray from metal items and such but how does one go about doing it on lenses and frames made of plastic with or w/o iridium coatings? What chemicals have you used that were light enough not to damage the finish? Just looking to see what others have done and what works. Thanks!