Nail files
VF, re nail files, guts for garters etc, us engine blokes always carried our "Riffler Files" to blend slight dents & abrasions, but for deeper damage & as a "get you home" for the man in the RH seat a nail file often worked wonders, there must be stories on here about what we did that experience & 20 years of engineering taught us that got the job done to get the rotating mass airborne & home ! often a case of needs must within the parameters of safety and being an engineer in the old (good) days before all this yellow jacket & risk assessment stuff came in, PH (an ex helicopter engine fitter & engineer).