I've managed to adapt the hair of Maxine, character from a game called Life is Strange, to MH:
The base object I've found at this guy's: http://lezisell.deviantart.com/ He's some sort of a Belorussian hacker and he explicitly states that he's ripped all the models from games, so take it as you will if you care about licensing. Given that I'll be alive and in good health, I'm going to steal a lot hairs and clothes from his models into MH. (It's only that adapting the mesh so that it'd be kosher for MH is tedious and painful like pulling teeth, I hope some day I'll come up with a better way).