def METHOD_NAME(self, face_size=.01, **params):
    obj = new_cube()
    surface.add_geomod(obj, self.geo_moss_instance, apply=True, input_args=[face_size])
    assign_material(obj, surface.shaderfunc_to_material(MossFactory.shader_moss,
                                                        (self.base_hue + U(-.02, .02) % 1)))
    tag_object(obj, 'moss')
    return obj