They're standard white arcade coin-op buttons. I get mine here in Australia from ozstick [ http://www.ozstick.com.au/product/classic-dimpletop-pushbutton/ http:

They're standard white arcade coin-op buttons. I get mine here in Australia from ozstick [ http://www.ozstick.com.au/product/classic-dimpletop-pushbutton/ http://www.ozstick.com.au/product/classic-dimpletop-pushbutt... ]. In the states checkout Happ Controls (now seem to be called Suzohapp) [ https://na.suzohapp.com/products/pushbuttons/58-9111-L https://na.suzohapp.com/products/pushbuttons/58-9111-L ] or Amusement Distributors. [ http://www.amusementdistributors.com/index.php?main_page=product_info&cPath=2_70&products_id=372 http://www.amusementdistributors.com/index.php?main_page=pro... ] Just note that they're not illuminated, they just take a standard size microswitch. Looks like they rigged up the illumination separately.