Link: Location Earth Dog Tags
via The Museum of Hoaxes
"...In case of alien abduction these dog tags may save your life. The crucial data an alien will need to get you back to Earth is die stamped into these dog tags...
...Engraved with several methods of locating Earth in the Galaxy, an alien pilot does not need to understand any human language to use this information. The mathematical location of Earth in relation to several important pulsars is represented by the radial diagram. Earth's relation to the solar system is shown at the top. Also included is a schematic of Earth itself and it's major land masses..."