Thatimst3r writes:
Rag-dolls are always lots of fun, in this short tutorial we go over how to setup a rigid body constraint rig and match the bones of our character to these constraints.
low poly human model: http://www.blendswap.com/blends/view/79688
finished .blend: https://drive.google.com/file/d/0B_DSg35urBhDNW5YMmw1Y2doaWM/view?pageId=111858119970441007293
Enjoy!