The chirping piezo electric circuit from my last post is getting a body. I did the layout in KiCad and sent my boards for manufacture by PCBWay (based on a colleague's recommendation). Their interface is not as user-friendly as OSH Park, but they offer a variety of solder mask colors - not just purple. I ordered this guy in black. I'll post an update when the boards are wired up and chirping.
Board layout in KiCad
KiCad 3d simulation of the pcb