Amazon.com: Arcity 2 Pcs Arcade Cable Wire LED Button Power Cable Daisy Chain 0.250 Inch /6.3mm Terminals Jumper Wire Harness Lighted Up 20 LED Arcade Buttons for USB Encoder, MAME, Arcade1Up, Raspberry
Arcade Button Quick-Connect Wire Pairs - 0.11 (10 pack) : ID 1152 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Adafruit Arcade/Button Quick-Connect Wire Pair - Set of 10 pairs