How to make a rig that reacts to gravity

This tutorial shows how to build a rig that reacts to gravity. 1.How to make a object to have cloth physics applied to it. 2.How to attach empties to the mesh with cloth physics on it. 3. How to line up armature bones with Inverse kinematics with the empties as targets. 4.how to attach the mesh cloth object to the hat. 5. How to add an armature bone in the head and then attach the armature object that has cloth physics controlling it to the armature parented to the head mesh.