- Two wires, about 30 cm (12”): standard wire, such as https://www.sparkfun.com/products/14913 Solid wire is easier for beginners to solder, but stranded wire will also work.
- Wooden dowel, about 6 mm (1/2”) diameter, about 10 - 15 cm (6”) long (can be purchased at most hardware stores)
- 3.5 mm audio plug, or “mini jack” mono or stereo phone plug (male) for soldering—you may have to purchase these with a cap that can unscrew that you should remove https://www.allelectronics.com/item/smp-3/3.5mm-stereo-phone-plug/1.html
- Small DC motor 1.5-3V 15K RPM e.g. https://www.allelectronics.com/item/dcm-491/1.5-3-vdc-mini-motor/1.html