Any Good Dyes??

Well, there are always the sprays and gels that come out in one wash. . .

Actually ask any manic panic crazy hair color fan and they'll swear its temporary. Otherwise u should def. try loreal color pulse

How long Manic Panic (or those other semi-perm dyes you can buy at Hot Topic) lasts depends on what your hair is like to start with.  It'll last a lot longer if you bleach your hair first.  You don't even have to bleach it pale-- I know someone who just used a lighter dye and it made the stuff stick pretty well.  It fades, though, if you don't touch it up.  Hers went from a kinda forest-y green to something more like moss before it washed out.  I forget exactly how long it took to wash out.  I used Special Effects on my natural hair, and it didn't last like forever, but it was visible for a week or two.  *shrugs*  It started out something like a cherry-red, and faded to a bit of a pinkish-red tint in certain light, before it just went back natural.  I've also dyed my hair with Kool-Aid before.  On natural hair, it'll stay maybe a day or two before it fades out, but it lasts like forever on bleached hair (er, I'm bad at bleaching, so my hair turned strawberry-blonde. . . over which I put blue Kool-Aid. . . which turned green -_- . . . and so didn't wash out for ages. . .).  Of course, that was probably way more information than you wanted, but you get the point ^_^ .