I didn't vote, cuz I've got mixed feelings about them.
Pippi Longstocking, (a character from kids books in the 70s, for you young'uns) in elementary school, cuz my mom would put my hair into 2 braids that would kind of curl up like hers did.
Annie, also as a kid, when I had a big curly almost-but-not-quite 'fro, and my hair was much redder then too.
Troll doll, by this girl in college who was obviously mean. She never said it to my face but my roommate said that's what she called me behind my back because she thought my hair looked just like that.
That one was not my favorite nick-name!