You can make your glasses out of anything you like and it might even be possible to modify a pair of existing sunglasses if they are big enough. My good friend Roger Persson was nice enough to design a pair of glasses for this book. In Figure 3.1 you will find the design of the glasses with measurements. Remember that these measurements might need to be modified so that the glasses fit your particular head size.

Figure 3.1: The glasses design

The design of the glasses is very simple yet fits the purpose. The design consists of three main pieces, the front and two side frames. The two smaller pieces are used for added support when connecting the frames to the front panel. The frames can be simply glued to the corners of the front panel, while the two small pieces are glued to the inside corners on each end, as shown in Figure 3.2. The design template can be used to cut the pieces out from any material you like, but I recommend a sturdy material of at least 3 mm thickness...