My school visualizer is made of cardboard, it's composed of different parts:- the first one is the body, this a cube of 15*15*5cm.
- then the 2nd part is the first arm, this part will come on the top of the body.
- the 3rd part is the most important because this a joint who will give the right to the second arm to move at 180°, if you need to show an other thing on the other side of the camera.
- the fourth part is the second arm where will comes the camera on.
- and the last part is just a rod to substain the both arm togheter.
And on the pictures the color doesn't match with the reality, it's just to get a better idea of the prototype, and it's all made of cardboard