Blog ZarkSeven shared this minifigure paper craft last week. If you are looking for a challenge, this may be it. The four sheets can be printed out, but there are no instructions and there's no picture of a completed model. I guess that means if it looks good to you, then go for it.
I may have to give this a go, just to see the end result. Might be a fun way to set up a paper fig for customization.
You can download the patterns here.