I know this is going to sound crazy, but people have mentioned demonstrations.... why not a Flash Mob? These are a few of my favorites.
YouTube - Sound of Music | Central Station Antwerp (Belgium)
YouTube - [OFFICIAL] Michael Jackson Dance Tribute - STOCKHOLM
YouTube - The T-Mobile Dance
YouTube - Sydney Flash Mob Freeze - Jun 24 2008 - Official Video
YouTube - Frozen Grand Central
Definitely a positive way to get attention, IMO.
YouTube - Sound of Music | Central Station Antwerp (Belgium)
YouTube - [OFFICIAL] Michael Jackson Dance Tribute - STOCKHOLM
YouTube - The T-Mobile Dance
YouTube - Sydney Flash Mob Freeze - Jun 24 2008 - Official Video
YouTube - Frozen Grand Central
Definitely a positive way to get attention, IMO.