I'm writing an X-Men Fanfic/RPG with some friends, and one of the characters I'm writing is Emma Frost. Emma tends to have a fairly immodest fashion sense in the comics, so I needed something more appropriate to serve as my profile picture of her. The easy answer was just to make my own. So I took an existing picture that had fairly basic lines and an attack pose (as oppose to the provocative stances they often draw comic heroines in), and did my own sketch.
Then I used our beautiful new scanner to scan my drawing in and do my own coloring. The result? Voila.