How to create new hair update for some players???

I would just like to ask on how to create or how to make a new hair update for some of these players...or simply for short How to make a new hair update...

For example...

Adam Morrison of the Charlotte Bobcats...

Here's some helpful pic that I found...






& Carnelo Anthony...of the Denver Nuggets...





Hope anybody would help me here...

God Bless to all of us