Interesting thread so here's what I've heard and seen:
I worked with a woman who called herself Sissy but her real name was Clifford (apparently it was a family name and her father was gonna name the kid Clifford, no matter if it was a boy or a girl).
Another woman I work with named her little boy Draven Lennon (the first name I don't where they got it but the middle name is after John Lennon). I like it but it took a little to grow on me.
I grew up with a girl named Meadow Flower (first and middle). Wonder what her parents where all about?
I had a great uncle Gold and a great aunt Silver and there younger brother, my other great uncle, was named, wait for it....Thomas. My Grandfather's first and middle name is as follows: J B. That's it, they aren't initials, that's just his name and how you spell it. Weird.