Thoughts (fanciful or otherwise) that came into my head, after reading Kath Stark's post of about 8 hours ago.
In my view, the first three albums contain the most power in terms of the Cockney Rebel brand, and by inextricable link, Steve Harley.
Pop art, of which T shirts could be an expression (mass produced, potentially sexy, relatively cheap etc.) has to be fashionable, in my view, or capable of coming back into fashion. Biba T shirts come to mind . '70's revivals, in one way or another, are never very far away, it seems to me...
The graphics of the first two albums i.e. 'Cockney Rebel', the way written is arty and distinct.
The images of the band on the first two albums, likewise.
The third album imagery is of course iconic (though not more so than the first in my view)
And the phrases (or part lyrics) that 'do the most' for me are
'The Human Menagerie of Cockney Rebel '
'She - Dinosaur - And Me - her He-Whore' might make those unfamiliar with the source, want to look (it) up (?) - or spread the word
Thanks for triggering my own thoughts, Kath, all the best, J.