The girls and I had some hair fun on Monday. Molly decided she wanted to have a rainbow and Lily a red streak. Since it's going to be summer soon I gave in. We used Manic Panic which should wash out in 5-6 weeks. Everything turned out good except the aqua blue. That disappeared immediately after we rinsed it out. But I think the rainbow look is still evident.
To do this I just sectioned off her hair with foil and clamped the foil with two clips at the top corners while I brushed on the colors in 4" chunks. Then I folded the foil on both sides wrapping the hair. I also used a hairdryer to heat up the foil while waiting for the dye to set. I read that this helps intensify the color.
Manic Panic is about $10 for each jar of color. If you don't want to spend $60 on the six colors of the rainbow, just get the primary colors and mix to make the secondary ones. Also, I bought mine at Sally's and they had a two for one sale, which always helps;-) To get the mermaid waves in Molly's hair I used the Hot Shot Tools ceramic deep waver also bought at Sallys.