This one, I really don't have an explanation for how I came up with it. I recently started playing JR's, a really good FNaF fan game, and I started thinking about how creepy the characters are. Especially the withered ones. So I came up with my own, named "Junior." (pretty lame, but whatever)
I used a basic Endo-01 bitmap image to help with the arms and legs, to emphasize just how damaged he is. This artwork is free to use in any game, animations, etc. I only ask that I get some credit.