One night on a whim, I decided to dye my hair turquoise.
Not just the underneath part (which was once purple, then pink, then red), but the ENTIRE THING.
Step #1 - you gotta get all that pesky brown out, and bleach the shit out of it. For me, this took a while, since I had a lot of dark color to get out. Ugh, the chemicals. The CHEMICALS!
Step #2: Foolishly buy a container of Turquoise Manic Panic hair dye from your local punk-rock store, then slather it on.
Step #3: Wait for a while, wash it out, then feel like an idiot-clown-mermaid.
I'm sure this color works on some people, but I didn't like it. It was just not me! AND I ran out of dye, so I missed a bunch of spots, AND the bleach didn't take to my ends very well so it looked icky and green at the ends... so... moving on to the next step...
Step #4: Dye your hair back to black, and enjoy your new nicely-damaged yet low-maintenance hair.
Sigh.... at least I learned my lesson!