I made this about a year after the movie came out. This photo was taken at an L.A. convention in the spring of 1978. Because I was a brunette with long hair, this one was a no-brainer.
The costume was a dirt magnet (especially when worn to theaters and exposed to buttered popcorn). I usually looked like I had just come out of the Death Star trash masher.
The costume was very simple (essentially a t-tunic), but it took a lot of trial and error to get just enough fullness to fall in soft folds in the front and yet not have too much fabric around the body.