What do Geisha's wear/seen with?

I want to know because I'm going to be one for halloween. So far, I have the costume, it's not quite as long as a kimono but has the genuine style of it. It's a lightblue silky gown with dragons on it. I also bought those paper painted umbrella's that you see one with. I almost bought a fan. What kind of make-up do they wear, how do I get the white make-up? Someone told me to use makeup concealer and baby poweder.