LED Arcade Buttons Power & Wire Kit (.250in/6.3mm)
Arcade Button and Switch Quick-Connect Wires - 0.187 (10-pack) : ID 3835 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Amazon.com: 20pcs 4.8mm (0.187") terminal 2 Pin Wire Harness For Arcade HAPP Push Button / Arcade Joystick /Arcade Console : Video Games
Amazon.com: Arcity 2 Pcs Arcade Cable Wire LED Button Power Cable Daisy Chain 0.110 Inch /2.8mm Terminals Jumper Wire Harness Lighted Up 20 LED Arcade Buttons for USB Encoder, MAME, Arcade1Up, Raspberry
Amazon.com: GUWARRY 2 Pcs LED Power Cable Daisy Chain JST XH2.54 2Pin Plug to 0.110 Inch /2.8mm Terminals Jumper Wire Harness Lighted Up 20 LED Arcade Buttons for Arcade USB Encoder, MAME,
Arcade Button and Switch Quick-Connect Wires - 0.187" (10-pack)