2x Servomotor (SG90, I got it out of an Arduino starter kit)
2mm thick Plexiglas, 60mm diameter. Paint it partially in black.
optional: 4x LED, 3mm diameter for back lighting. In this case, the part "Indicator_Backlit" must be printed with transparent material.
optional: 1x LED, 5mm diameter for the flag/warning
When combined with one another models of this collection mimic the functionalities of the instrument panels found in most aircraft (helicopter, fighter jets and even space ships).