Some of Lee Krasnow's Woodworking Jigs
Here are some of the tools Lee Krasnow uses to make his puzzles, most notably the jigs he uses for drilling holes at odd angles very precisely. He designed these yellow blocks on a computer, and then had them 3D printed. He uses a very interesting combination of high-tech tools (CNC driven saws, 3D printed jigs) and very old tools and materials to produce things which look like they could've been made 200 years ago, but with a degree of precision that probably wouldn't have been possible.
Seen at Maker Faire 2006.