The San Fransisco Zoo has gotten the citizens of San Fran involved with their advertising campaign.
Marketers kill for this kind of involvement. The success of the campaign shows how well people respond to creative approaches that on the surface seem invasive, but turn out to be fun.
The zoo has plastered the sides of bus stops with cutouts of butterfly wings, peacock feathers, giraffe ears and Kudu horns. Passers-by grab a photo and upload the images to the zoo website. Later, some will be chosen for a print campaign.