Pasta Circuit Board

Experiments with laser cutting and engraving -I have made cutting experiments on paper, card and acrylic; shapes, holes
One motif is taken from the solderless breadboard, used for prototyping electronics circuits: A grid of holes 0.54 mm apart.
(image)

A more involved cut - from a of a PCB design stencil. In fact the real thing. Apart from etching onto copper plate, the second most common method is to engrave off the area around traces on a copper plate, or cut out the copper from a sheet material.
Here shown in thin black card (not easiest illustration)
However, with conductive traces this could work.



How about an organic material?
Serial One Sided Arduino on Lasagne


The pasta electronics department desktop