Pink hair is easy - and doesn't change anything except for more fluff. Perhaps there's people who are super into pink hair and it ends up being worth a lot to an escort type character, but also leads to people whistling after her on the streets in that particular strange town...
Now I asked a question about snake hair before and people said it's basically no different. For me it seems like it's really quite different, because it leaves so much more open to explanation. If these snakes actually live in your hair do you have to feed them? What's their relationship to the "host"? And how the …