Paper dolls were popular, and I've seen comic books where someone cut them out, thereby damaging the book beyond repair. But I think to do it they'd need sharp eyes and a sharper pair of scissors to follow the outlines of the tiny images published in comic books. If you want to use my scans to print your own go ahead.
Kitty was drawn in 1948 by Lily Renée for St. John with a cleaner, less complicated style than that required by Fiction House, where she drew Werewolf Hunter, Señorita Rio* and the Lost World features. I'd think Kitty would be a natural character for Renée, who wasn't far out of her teens (born 1925). Although born in Austria and a war refugee who became an emigrant to the U.S., she captured the American bobby soxer very well. She claimed she dressed Rio in clothes she wanted to wear, so a paper doll fashion comic book seems a natural.
In 1953 St. John changed Kitty's name to Lucy, and reprinted the story (whiting out Renée's signature) in Lucy the Real Gone Gal #1.
I picked this story to show because Katy wears a leopard costume. There is just something about a girl in a cat suit...