I'm also a glam rocker girl to an extent. It's a hard fashion to work with sometimes, but it's really fun.
Metallic anything
Tight jeans with flared bottoms
Skinny jeans (cheap mondays are good)
Animal prints
Leather (vintage preferably to avoid killing animals)
Teased hair
Boots with a platform and heel
Fishnets
Tiaras
Vinyl
Sequins
Dramatic unusual makeup
Glitter
Torn Up Prom Dresses
Suits and Ties (Glam rockers loved androgyny)
Cheap plastic jewelery
Motorcycle gear (Glam boys are fluffy and feminine, glam girls are a bit more hard edged and tough, go for a gender bender sort of thing)
Short Hair works well
Feathers
Boas
Also you should look up Susie Quatro, she was a fairly famous female glam rocker and you can borrow ideas from her.
Also check our the movie Velvet Goldmine for fashion ideas.
Resources: http://community.livejournal.com/thank_u_glam/
PS: Check out these bands I think you'd like them:
The Noisettes
David Bowie (King of glam)
Mott the Hoople
Roxy Music
Christian Death
T. Rex
Glass Doll
The Dead Stars On Hollywood
The Ark
Kissy Kamikaze
Placebo
Cinderella