Mini LED Arcade Button - 24mm Translucent Clear : ID 3429 : $2.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Happ-Style Standard Arcade Buttons
Building An Arcade Controller | Yoseph.Tech
Amazon.com: EG STARTS 6X American Style Standard Arcade Buttons Switchable Happ Type 30mm Push Button 3/16" Terminal for Jamma Mame Kit Parts (Black) : Video Games
QANBA Gravity LX 30mm Clear Arcade buttons
Killer Instinct and Mortal Kombat Arcade Control Panel Dimensions and Button Layout « SOLID-orange
30mm Mounting Hole Momentary Game Push Button Switch for Arcade Video Games Green, 10pcs - Walmart.com