Paint help..no pics to share...sorry

[arianfire.livejournal.com]

Ive noticed a few threads on doll make overs here and there. Anyway, I just started my cosmetology course and I have 3 mannequin dummies Id like to personalize since everyone in the class gets the same head. I just dont know what kinda paint to use (I have TONS of acrylics, but I figured those would be easily removable since Ill be using chemicals and all) and if Id need any sort of a primer or sealer?!? Keep in mind if anything fell on her face, id like it to be easily wiped off...the mannequins plastic finish sucks up hair dye and it cant be removed.....any help is greatly appreciated..... thanx