This sort of forum is well and truly overdue. There are simply far too many posers and muppets (as you put it) on pprune.
Forgive my ignorance but don't Air Trafficers, Engineers etc etc have licences?
If they have then perhaps a photocopy of said licences would suffice. They don't really need to be current for the young still have a lot to learn from the old.
Someone suggested that this wouldn't work because all you would have to do was borrow someone's licence and send a copy.
In this day and age would any professional lend someone their licence? If someone asked to borrow my licence I would be speaking to Special Branch very, very quickly!