A 3D lunar moon clock face. Comes in two designs. One has a smaller hole for the mechanism and the other a slightly larger hole with the New, Full and Quarter Moons labelled.

This mechanism would be appropriate for the clock: https://www.dansclockshop.com/product/id/458/moonphase-clock-movements-hands/new-quartz-silent-moonphase-lunar-clock-movement-mechanism-motor-17mm-shaft