Blogging - at last:

sipwerk presents the first SMD circuit on a structured zinc surface:

First, a everyday business card cardboard was coated with zinc by a thermal spraying process. Second step was a manual structuring of the surface. Finally a surface mounted NE555 integrated timer chip and it’s associating discrete circuitry was soldered onto the conducting structure. The whole arrangement is blinking a red LED.

You can watch it blink here (HighRes).