After research into possible quirky 1950's designs with a neon kitsch twist i came up with some graphic prints, here are some of the best ones below. Adding these prints with the very textural knits and embellishments will give a very kitsch and tongue in cheek 1950s style.
After making these patterns i felt that they were 1970 psychedelic than 1950's American Diner and didn't fit my theme quite right, so decided not to use them.
I had these printed onto woven chiffon and here is a preview of the finished sample sheet