I dont know how many find this appealing, but for me a good looking girl giving the middle finger is hot as hell.
Here is a collection of photos with a few new ones.
http://www.evilmunky.com/2009/12/hot-girls-flipping-the-finger-nsfw/
http://www.evilmunky.com/2010/01/hot-girls-flipping-the-finger-part-2-nsfw/