Here's something that might be quite useful to the community. It's a pair of wings on a standard MH rig (where I only added IK on face, arms and legs).
It's only a first draft, but it animates well. I don't have a clue what folks would use it for, so I will for some feedback.
I would have posted it yesterday, but then people would have thought it was an April Fool's joke.
and here is the Blender model. If anyone is interested, I can export is as Open Collada also.
http://www.geekopolis.ca/blender/angel_wings_IKFK_276b.blend