I am wanting to print an action figure of captain america off of thingiverse

I am wanting to print an action figure of captain america off of thingiverse but I want to switch its head to a head of a friend. I do not have a 3d scanner but would like to know if there is a way that I can take a picture and some how either just switch the face or the head. I would like to give it as a gift to someone for Christmas. Any help would be great…

Try http://www.123dapp.com/catch