I've seen that inexpensive spray bottle or bottle of gel that you put in your hair and it changes the colour, normally to something whacky like neon orange or bright pink. I don't mean the sort that comes with kid's toys, I've heard of the Barbie stuff and I doubt it's any good. You can get the one I'm talking about at Shopper's Drug Mart and it comes out with one or two washes. Is this damaging to your hair?