Here are some more nontraditional tactics the US Army and military divisions have used to approach candidates. It is important to note that they do make a point to say it is about opening the door to discussion when it comes to these items. It is a softer approach to reach out to candidates but does tend to yield results with those who best fit the military model. Most people are highly concerned with research and education towards their future careers.
Although this campaign may be old, from 2005, the tactic offers potential candidate exposure depending on the industry.
Nascar pictures from: http://www.army.mil/leaders/leaders/sma/photos/2005February/2005February.html