Home-made Switches

B3 has a physics project.  He is in a group to make the model of a apartment and wiring all the lights.  There are 6 bulbs and the students have to make home-made switches.  He spends lot of time making the house looked like a doll house with all the furniture and there is even a painting on the living room.  He has the home-made rheostat using pencil lead.  The home-made switches are paper clips and thumb tacks.  I am so proud of this boy boy.