Free 3D rig for Maya 2016.5+ to use for your own personal use.
Rig features include:
Full IK/FK blending on arms and legs and hybrid IK/FK systems for torso and head.
"Snappable" IK knees and elbows, with optional FK forearm.
Bendy controls to add arcs to arms/legs.
Local and Parent space switching for various body parts.
Versatile face rig with tweak controls for head, eyelids, lips, teeth (must be turned on via head control)
Resolution control including a basic non-skinned proxy rig for faster interactivity.
Note**: The IK legs and and arms sometimes bug out but pop back into place when scrubbing in the timeline or moving the controls. Restarting Maya tends to fix this problem (I'm not sure why this happens, if you know, email me! email@example.com).
Also, the skin cluster for some reason does not like when joint visibility is turned off, so to hide the joints from your viewport use Show>Joints.
Thanks to Stephanos Shino for helping to design this, as well as a ton of feedback and problem solving. See his stuff here: stephanosshino.blogspot.ca