To Dip or Not to Dip?

Off topic here! Lately I have been wrestling with the idea of dying my hair a crazy fantasy color. The idea or dip dying my hair came to mind because well, simply put, if I don't like how it turns out I can always cut the ends off. 

Have you ever dip dyed your hair?
Were you happy with the results?
What color did you use?

 Some dip dying inspiration!