Use a SPDT spring return switch. Power goes to the switch machine center terminal. 2 wires from the machine go to the outside contacts of the switch. Common (return) goes to the center terminal. For leds use whatever colors you want. Wire a 1000 ohm resistor in series with each one. Put a diode in parallel with the resistor - led pair. The longer lead on the led is +. The banded end on the diode is also +. They go together. If they don't work, reverse the leads end for end. Sounds more complicated than it is.