A multi-colored self-illuminating writing implement whereby one of a plurality of light sources contained within the housing of the writing implement is made selectable by the user as desired. The self-illuminating writing implement includes a marker mounted within the housing adjacent a marking end of the writing implement. A battery is also disposed within the housing for providing power to the selected light source. A plurality of light sources are mounted to a de-multiplexing switch that allows the user to selectively place one of the plurality of light sources in electrical communication with the battery mounted within the housing.