Not sure if this fits or not but: when I was a run-away kid and musician wannabe back in the mid-sixties and bumming around L.A., there was a huge record/music store in the heart of Sunset Strip - I believe it was called, "Wallach's." I remember it well because you could actually go into a booth with the records you were interested in
and listen to them to decide if you wanted to buy them or not - what a concept, huh?

At any rate, to get to the instrument section you had to walk down a
corridor and on the wall of this hallway was a series of note boards.
I stopped to read them as most of them were musicians looking for work or bands looking for players, etc. On one 3X5 card was printed:
"Byrd with clipped wings looking for gig. Call David (# given)."
I remember smiling at that and shrugging it off but I came to believe
years later that that was a "real" ad that David Crosby had put up there. Being a folk/rock junkie from Detroit, the Byrds were music giants and heros to me, but in L.A. they were just a local band
and Crosby just a local player - they didn't become legendary until
many years after that card lost it's tack. Just thought I'd share.
Cheers.