You won't stop the children of the revolution.

Sarah's work's Christmas do this year has a theme of glam rock. Can anyone help by pointing us in the direction of any retro stockists who might be able to supply clothes that would help her look the part? Or for that matter, giving us an idea of what would be a good idea for her to wear? I've shown her some Youtube vids of T Rex, but my knowledge of glam is...fairly limited.