Rainbow Colored Hair

I've really wanted to put some fun colors in my hair for quite some time. I spend a lot of time drooling over candy colored tresses and dream about having rainbow locks of my own.

These are just a couple of examples of what I'm thinking of. I have until tomorrow afternoon to decide if I'm going to actually get it done, at least get it done professionally. I just worry that I'll look more My Little Pony than someone with wearable fun hair. Cheers to the girls who can pull of bright colored locks with no worries!