Following this https://www.instructables.com/LM317-Adjustable-Voltage-Regulator-1/ instructables tutorial.

Material list:

Switch https://www.amazon.com/20Pcs-Button-Switch-Rocker-10x15mm/dp/B07D7TVGHH/ref=sr_1_62?crid=19PBV1VFZLB59&keywords=rocker%2Bswitch%2Belectronics&qid=1673085216&sprefix=rocker%2Bswitch%2Belectronics%2Caps%2C243&sr=8-62&th=1 

Display https://www.amazon.com/DROK-100016-Converter-Adjustable-Regulator/dp/B00BYL9CHG/ref=sr_1_1?crid=VBABQBLS6GY0&keywords=volt%2Fampmeter+display&qid=1673105043&sprefix=v%2Caps%2C2241&sr=8-1 

Banana plugs https://www.amazon.com/JS-910B-Banana-Binding-Terminals-Speaker/dp/B07K59Z3NZ/ref=sr_1_3?crid=1IZD76L26P85S&keywords=banana+plug+sockets&qid=1673104510&sprefix=banana+plug+sockets%2Caps%2C2945&sr=8-3 

Anything else the tutorial needs.