Some early drafts and tests https://tinyurl.com/nb10test
Initial concept, momentary switch not shown, idea to use 4 alternating LEDs to represent 1010 binary version of "10". 3 peaked resistor as symbolism of bay bridge.
Full bridge rectifier of LEDs with speaker as DC load and AC input. By varying the frequency different tones/noise is generated. Image should be vertically flipped.
Positioning of components and traces to more visually illustrate a 10.
LiteON LTL911TGKS green LEDs soldered together in rectifier configuration with 8Ω dc speaker load and ~5v rms ac ~20hz-20khz.