Used a template of an existing button and have customized it to make my own design out of it. Looks certainly wonderful when this is printed with copper-filled filament or painted accordingly.
Original: https://www.knoepfe.de/Steampunk-Knopf-aus-Metall-in-Zahnradform-messing
See also: https://www.prusaprinters.org/de/prints/120963-steampunk-button-i
The author remixed this model.