This thing does not serve any particular purpose. It is just playing with the silhouette of my wive cut out of wood and a candle for illumination.
I somehow lost the knob for selecting the power of my microwave. It took several iterations but I finally made a new one. It is not winning any prices for beauty, but it works.
It is made out of two parts: The thing that acually plugs into the microwave and a round knob. That way I can replace them idependently when one breaks.