The Banrock Station winery call this The worlds first Bee poster, where the bees themselves spell out the S.O.S which in this case stands for "Save our swarm"

The SOS stands for Save Our Swarms and is part of an advertising campaign by wine company Banrock Station.
The firm is donating 5p from the sale of three special edition wines to the Co-Operative's Plan Bee campaign, aimed at helping the UK's bee population.

No bees were harmed in the making of this billboard.