On/Off/On Rocker Switch - Sparkfun
This small On/Off/On Round Switch up to 10A at 125V AC can be mounted on a panel with a 20mm diameter hole. It will also look very elegant in your project.
(SEM IVA 0.14€)
This small On/Off/On Round Switch up to 10A at 125V AC can be mounted on a panel with a 20mm diameter hole. It will also look very elegant in your project.
This panel mount Toggle Switch has built-in indicator lights so you know when the switch is on. They mount in a 20.2mm diameter hole and are rated up to 16A 12V. These SPST switches have three terminals, the two of which you would normally see plus one at the blue LED. Although these are for 12V, the LED only works on 5V.