I have been making these for about a year now and I thought that I would document and give a list of parts. It is a nice easy beginner level project and making 10 of them is the cheapest way to go. All of the Amazon links will have enough for 10, and ordering the boards from PCBWay is cheaper buying 10. Join us on Facebook https://www.facebook.com/groups/8bitdoodads Our Amazon affiliate page We make a small commission on things you buy there https://8bitdoodads.com/tools-we-use/ Parts list for this project. Main board from PCBWay: https://www.pcbway.com/project/shareproject/_DIY__JOYSTICK_TESTER_FOR_COMMODORE_and_ATARI_with_TWO_FIRE_BUTTONS.html Battery Holder 12 pack https://amzn.to/4dUrwsS Resistor 100 pack https://amzn.to/4aGRspg LED assortment kit https://amzn.to/4eghwur DB-9 connectors 10 pack https://amzn.to/3R39gE4