hair dye

I  was thinking you know how some people have mood bracelets and mood necklaces and mood rings well they should have mood hair dye you would go up to a friend and they would ask "Why is your hair blue?" and you would say "I'm sad wright now." or "Why is your hair green."  and you would tell them. I guess it would be really embarrassing if you where talking to your crush  and your hair turned from green to red. That would be fun to have moody hair. That was my thought bye.