Take a look at MakeHuman. AFAIK, the figures created in it are open source and royalty free. Poser does have the Project Human figures. These are open source. I would go back and read all documentation included with Poser about them. I believe you could use them to make 3D printed figures. If you're not sure whether you can or can't, ask Sixus1. Or, as you said, create your own from scratch. That way, the entire work would be yours and you would get to decide what do with it. However, modelling a fairy figure from the first poly up is a long process.