12v DC rocker switch with LED, how to use in an AC application?
For the sake of safety, forget using mains voltage or even a ac to dc adapter. Simply use batteries. Normal alkaline batteries have a voltage of 1.5V, and 8 in series will provide the 12V these switches need for the led. 

These automotive switches have an led with a resistor selected for 20 mA at 12V, so no extra parts are needed to enable the leds. 

Simply connect the 8 batteries in series,  and connect that in parallel with the 10 switches. You can even buy an 8xAA battery holder.