I just came across an interesting character that seems to be able to perform some "extreme poses"

http://www.spinquad.com/forums/showthread.php?16901-Kerry-Dancer&p=177203&viewfull=1#post177203

Antonia is interesting to me because she can be posed in many poses that no other Poser character can do it without modification or post-work.  I think the rigging plays an important part of it.

Good idea! Someone should make a set of Yoga poses for Antonia, maybe, I should do that.