I think roy loo has them as freestuff at his website

It's for P4male fit, but you can always adjust that to M3's head by moving the y-translation dials and scaling a bit.  maybe rotate aroudn the x-axis to fit your character's nose bridge and ears better - I mean, it's free, for goodness sake.

http://www.royloo.com/free.php

Eternal Hobbyist