Larry Landfill and Rosie Recycling - a novel approach to public space recycling

Confusion and apathy are two of the biggest barriers to office and public space recycling. People who recycle at home often don't even recycle at work. The University of Adelaide, with the help of Ecocreative implemented a novel approach to engaging students and staff in recycling. UoA reports a doubling of recycling rates during the campaign period. Creative infrastructure and signage captures attention

Care must be taken to keep messages simple, but getting attention is also important. What other creative ideas might be used to capture - and hold - attention?