This arcade momentary pushbutton comes in a variety of colors enabling any hobbyist to make an attractive game console.  Mounts with snap lack tabs into a panel diameter of 30mm.
The good sized button provides excellent tactile feedback.

Specifications

Switch Type:SPST N.O. Momentary Pushbutton Snap Lock
Max Panel Thickness: 20mm
Rating: 12V/3A
Body Diameter: 30mm
Bezel Diameter: 33mm
Overall Length: 28mm           
Material: Plastic