One Handed Xbox 360 Controller - 2nd Version

Xbox 360 controller version 2This is Ben Heck's one-handed Wii controller and one-handed wireless Xbox 360 controller.

Looking a lot easier to hold, it requires the use of your leg to control the right analog stick (and idea that sounds weirder than it probably actually feels).

One handed Xbox 360 controller version 2
Source- http://www.techeblog.com/index.php/tech-gadget/pictures-one-handed-xbox-360-controller-version-2