How to get pink highlights?

I need to know a way to get pink blue, or purple highlights in my hair. my mom won't let me get highlights for real that are permanent so i wanted to ask if any one knew a way to get wash out highlights for brown (almost black) hair. i wanted something like allisyn ashley arm, elizabeth gillies, or avril lavigne's hair i like the hightlights and color they have, i have tryed looking for wash out colored hair spray but couldn't find any, i also tryed some dumb thing with washable markers.