One of my hobbies is looking in rubbish skips. Yes, passers by do think I'm weird. I'm used to it. Thanks for your concern. Anyway, a few months ago, strolling through the dockside developments in Bristol (UK) I found a piece of dense foam. It was yellow. I took it home and carved it into the shape of a human head and stuck a pair of DPA 4060's in the ears and stuffed a piece of round wood through it's brain with a mic stand mount on the bottom. Yet to try it seriously on guitar (acoustic or a cab) but field recording have been really excellent over both speakers and headphones. Experiments will continue just as soon as I've wired up all the 90-way Edacs on the kitchen table.
Edit - P.S. Nice Nietzsche quotes by the way; I would call him my hero but I think Nietzsche would find that idea deeply disturbing.