Random Audio Effects

If you drop electronics components randomly, solder nearby ends together randomly, and pass some kind of signal through them... most of the time, nothing interesting will happen. Is there a way to do this where more interesting things necessarily happen? Perhaps if you were to modularize "interesting filters" and drop the filters at random? How simple could the filters be?

One way to implement this: use tons of through-hole components and multiple layers of randomly generated PCB layouts set up with the holes in a grid.