private void createFollower(MoCapRigidBody rigidbody){
// create object
GameObject obj = (GameObject)Instantiate (rigidBodyObject);
// make it follow the specified rigidbody (always adopt its position and rotation)
rigidbody.addFollower (obj);
// make the new object a child of our main object (this)
obj.transform.SetParent (this.transform);
}