Quantity   Component name
3 × switches link: https://www.banggood.com/5pcs-Black-Push-Button-Mini-Switch-6A-10A-110V-250V-KCD1-101-2Pin-Snap-in-OnOff-Rocker-Switch-p-1096122.html?p=E01411629100201406T1&custlinkid=669250
1 × Heat shrinks link: https://www.banggood.com/328pcs-Heat-Shrink-Tubing-Insulation-Electrical-Shrinkable-Tube-Sleeve-Cable-21-p-1362019.html?p=E01411629100201406T1&custlinkid=669227
2 × 3D-printed parts
3 × (as many as you want) disposible camera's
2 × aligator clips