Last name ideas, please?

Ok, her first name is Fey. I just can't think of a last name that works. I'll describe her a little because I know that helps some people think of names.
She has curly black hair, green eyes with brown streaks in them, and pale skin. She's about 5'3 and thin. She's quiet and a little shy, she doesn't hang around large groups of people.
So, yeah. Any help appreciated greatly. Thanks. :)