Fawn is so named because of his color, a tan/brown.
Cookie is named because of her one eye being bad. I thought about naming her (g)rey (o)ne (e)yed (c)at. Any way, this translated into Cookie, which seems to fit her.
Tiara is named because of her tortie coloration -with a little brown spot on the top of her head
Tiger, from her lynx-point coloration, she looks like a tiger except her colors, being white and gray tabby.
Amy was name by the shelter keepers.
Blue-Czarina, because she is a Russian Blue.
Happy, because all that is necessary to make him happy is to touch him and he immediately begins to purr.
Chris, is named because I adopeted him just before Christmas.
Puma because she looks like the large (200 lb.) North American wild cat -being another Russian Blue.
King Otis, the Otis part was from the shelter keepers and the King, because of his royal appearance and demeanor.

I think that is all of them

.............wayne