Do you remember when dog tags were really cool? Well, they have come back yet again, and this time, they serve a more important purpose than identifying your birth date. The Earthbound dog tag, to the unknowing eye, looks like an attempt to revive the trend once more by scrawling artsy images across the surface. Little did you know those drawings might save your life....if you ever find yourself lost in space. Those chicken scratch doodles are directions home, as in Earth, in case a nice alien needs to bring you back and their GPS is broken.