The invention provides a method for figurines to form and join a network of figurines by setting them near other figurines, by activating them via a power switch, or by placing them in communication with a central hub. The substrate comprises a first fiber layer, a second fiber layer, and a resin layer arranged between the first fiber layer and the second fiber layer. Each graphical element is preferably displayed as a bar, with the length of the bar perpendicular to the progress axis representing the value of the result. The first circuit determines whether to charge up the output end to generate an output signal or not according to a first differential input signal. A protective device may be connected to the apron for protection the wearer from untidy activities of children. The stops may be formed on substrate, hinge structures holding the mirror plates of the micromirror device andor a desired location within the micromirror device.