Okay, I found my Halloween costume

It's a 1950s black and white movie actor. It involves painting all visible skin grey and using only shades of black and white makeup and clothes. It has to look like I am photo shopped in grayscale in a color world. Think film noir, think Pleasantville....anyone else LOVE that movie? That's where I got the idea!
So I was having trouble getting my skin grey. I tried mixing black and white clown paint but it kept coming out blue-looking. Ditched that and got the palest foundation shade I could find and mixed in a little black powder pigment. It worked perfectly! Black lipstick, grey and black eye shadow, a little grey contouring and "blush"....top it off with a black wig.
Still don't know what to wear though? I have tried googling 1950s style but it has to be in black, white and grey. Idk what to wear. I am gonna try mixing stuff from my closet with stuff from Goodwill. What specific kind of clothes should I look for to get that 1950s point across?