Well, the motor is windscreen wiper motor,it's a 12v motor and i use a 12v-5A power supply to supply it.
Also the stars are D1 with flake aluminium 325 mesh,that's why are so silver
i made the main base and i attach the roller with pulley and the whells.
Also the motor attached under the pulley..that's all
It isn't difficult to make if you have the materials