Judy Garland costume Ideas?

I'm 15, and I really want to be Judy Garland for Halloween, and I'm not sure how I should go about with a Judy Garland costume. I don't want to be Dorothy, because that's too obvious. What should i try for a Judy Garland costume, and how could I go about making it? P.S. My friends say I sorta look like her, judge for yourself http://www.flickr.com/photos/38240775@N07/3748397084/