My Biped Auto Rig tool creates a full functioning rig based off the skeleton that was generated from the skeleton generator tool. The rig has a full Inverse and Kinematic system plus additions control layers for adding motion on top of animated controls. The rig has a stretch function on all limbs/roll joints for better deformation. space switching capabilities/ eye and hand controls and more controls based off animators needs. The tool has been a work in progress for about a year and a half now.
below are some character examples: