8 Sqn used to have a semi-professional cartoonist on its strength (Air Pictorial etc) and many of his creations ended up as stickers/T-Shirts etc. We had the 8 Screws (one of his) and "Old Age and Treachary will Triumph over Youth and Skill" was also popular. I also remember just after the John Nott cuts of '81; "Join 8 and Get Notted".
The Sqn owned its own Sreen-Printing Press, and T-Shirts/Sweat Shirts were mass produced in the days before Air Shows to the considerable profit of the Bar Fund. We even had our own line in 8 Screws Skimpy Knickers which "went down well" with the punters. I once traded my tatty 8 Screws sweat shirt for a USAF cold weather flying jacket at an Air Show at Ramstein.
I have to confess though that I do not remember the "Brass Plaque" sticker. May have been after my time...