From
Tom Henry of New York. The always creative Instructables has come
up with a way to engrave stuff onto wood using only foil, a magnifying
glass, safety equipment, and the mighty power of the sun. Finally,
the sun comes in handy for something, right?
Check out this really interesting web site...
this section is about wood: http://www.instructables.com/tag/keyword:wood
From Tom Henry of New York.