Hero Machine version 3 is an online application that allows you to design your own comic book character. Aside from mixing and matching available costumes, one can also mix and match body parts. This allows you to create a variety of poses for your character.
It is like playing with paper dolls only you can do more. All of these three characters were created using HM3.
To try HM3 go here: http://www.heromachine.com/heromachine-3-lab/