[Amanda Ghassaei] has created an awesome hack for making your own vinyl records using a laser cutter from an MP3 file. Her excellent hack uses a Processing sketch that converts a digital audio file… ...

These were designed in CAD, with a DXF cutting file exported and sent off to OSH Cut for laser cutting and bending, in much the same way one would send 3D printed parts off to Shapeways or PCB ...