I think I might know what you mean... you just have to send in an image of them and choose them as the fan character represented in your image.

I dunno, if I know what you mean, but let me try to answer it... You either draw them or make render. Drawing is simple, you can do it outside computer and just scan it, if you have scanner. Or you can draw it on computer in Paint or any other drawing program. You simply put some image of that character somewhere near for reference and you draw it. And if you are not good with drawing, you can take screenshot from movie and color it to change already drawn character int yours, which is called render.