Dying Hair with mushrooms?

Hi,
I have some dyers polypore, and I'm wondering if it can be used to dye hair? Would I need a mordant, and is there a way I could make my hair green? I don't really care if I mess it up.
Also, if I do need a mordant, is there one I can use that I would already have or one I could make myself? The dye doesn't need to last too long.
Thanks

?

To get green you need to use iron as a mordant, how you would go about adding that to hair I do not know.