Four Motor Laser Spirograph DIY

My project is a 4 motor spirograph which makes a single laser light into amazing geometrical shapes. It is easy to do it yourself, you need know something about electronics and soldering.
You need:
- 4 pcs DC motor (1-4.5 V / 3-6 V)
- 4 pcs 10K potentiometer
- 4 pcs on-off switch
- 4 pcs TO-220 electronic component
- 4 pcs about 3cm diameter mirror
- 1 200 mW laser pointer
- 1 main on-off switch
- 1 indicator LED

If you want to connect an indicator LED, you might want to connect a r