Children can bend Parents, that is how ghost parts work. Once you set 'em up, they will work fine even without mesh, you can do them with just a CR2, no changes to the OBJ file at all. Anton's handles make them easier to operate and setup, of course. None of my shoes has mesh toes, for example, they all use ghost toes, bends the foot part just fine, makes it easier to morph, too.