Remember how fun it was writing on casts when the class jocks (or klutzes) busted their arms? This billboard ad for Sharpie permanent markers builds on that fascination by encouraging people to write on the giant white e-cast. Giving their target market the opportunity to engage with their brand through art, or permitted vandalism through graffiti, is brilliant. The Sharpie e-cast billboards are placed in different public places, from pay phones to bus stops, encouraging participation wherever people may stop for a moment.
Interactive billboards are a blast, especially for transit passengers waiting for their ride. Check out a few more engaging campaigns in the links below.