Going to a costume party doesn't have to mean a day spent at the hair dressers. I'm no hairdresser but there are some many YouTube videos on how to do hair. For the 50's party I simply rolled my hair back into a pin curl to the side and spilt the remaining hair into two sections, teased and pinned back!
Another key that a lot of people forget is teasing. Without teasing, your hair is hard to work with and less flexible but it all about creating texture in your hairs so its easy to bend in whichever direction you need it to go