I just wrote a tweet describing a Jeff Beck replica tele as a photocopy. Then I found ebay item 140257976042, which is a real-life guitar photocopier. It's a big welded steel jig, a bit like a pantograph. Drag one arm over the first guitar body, and a router carves its shape into the second wooden blank. No idea if the system is really detailed enough to carve crucial bits like the back of the neck, but it's probably cheaper than a CNC machine, like the one carving a nasty BC Rich clone in this awesome video (with terrible music).