Wikifarmer sold Greek farmers' stranded rice to the weddings that throw it.

Greek rice farmers end up with stock that fails commercial grade, often discarded or sold cheaply, even as weddings throw thousands of tons of rice into the air as a tradition. Each side is a problem the other ignores.

McCann Athens and Wikifarmer reframed it: wedding rice is not cultural waste but an underused logistics channel. Rather than ask anyone to change, they built a marketplace so farmers could sell 'non-commercial' rice directly to wedding organisers.

The same product that would be scattered on the ground now passes through a commercial route, turning a symbolic tradition into a circular economy and giving growers a new revenue line for a stock they were stuck with.

In the first week, over three tons of rice sold, platform traffic rose more than 100%, and the system recorded a significant rise in global agricultural sales — because the campaign became the business rather than just describing it.

The wedding throw is a lost-demand channel

It re-labels waste as an unmet demand, not a disposal problem

It builds a marketplace rather than asking people to change behaviour

The tradition stays untouched; only the supply route into it is added

It changes the farmers' economics, so the effect outlives the advertising

A tradition that consumes a commodity is a demand signal suppliers rarely see. Can't change the culture? Route the supply into it: the waste you can't stop becomes the channel you sell through.

The campaign won the Grand Prix in Creative Business Transformation at Cannes Lions 2026, from 151 entries of which only 20 reached the shortlist. Judges praised its simplicity and its clear link between a cultural insight and economic results.