Easy and interesting halloween idea
Combining the things I love: costumes, pinup style and art (in this case, Roy Lichtenstein).
Now, I know this is not a kind of women Roy would draw, but I had to combine those two :)
Do your hair!
You can find some awesome tutorials for pinup bangs and victory rolls!
If you don't have time, just add a nice dotted scarf
Vintage dress, heels and long gloves! (trust me, you'll be happy to have them when you start drawing on yourself)
Find a reference image and start drawing!
Use red lip pencil for dots, and black eyeliner to draw those characteristic lines.
For extra touch, make a comic ballon with a desperate woman's sentence.
And remember to have fun! :)