So the other day I get an email asking how to map the image of a circuit board onto a human face. An interesting though slightly unusual request, it's definitely not the oddest email I've ever gotten. Turns out, this is a really useful and easy technique and now that you know what to look for, you'll see it used in ad campaigns all across the country.
To illustrate the effect properly, I trotted over to istockphoto and purchased a photo of a circuit board and a face: a "Scary Frustrated Man Face" to be exact, just to spice things up a bit.