I had already butchered my Princess into a "Turbomotive", painted red, but struggled to justify this on a 1960 ER terminus. I was delighted to see an article on how to convert the poor Princess into a Black Five which surprisingly was not available RTR back then. I do believe that I still have the mutant somewhere!
I enjoyed the April Fools. I think the London Underground one with the guy digging up the floorboards was the first, it certainly fooled me for a very long time.
I loved Blunts. I spent much of my spare time in the WGC branch as a schoolboy and, much later, I used to nip down to Mill Hill as a teacher.
Ed
There was a magic to some of the authors' names in the RM. W Hardin Osborne and Robbo Ormiston-Chant spring to mind.