Bulgarian advertising agency Noble Graphics Creative Studio have developed a really creative ad for the Bulgarian beer brand Shumensko:
This is usual supermarket paper bag that exactly looks like a case of beer easily held by its owner with just one hand. As the authors say,
Through a small investment in paper bags distributed in stores, they turned pedestrians into free outdoor advertisements of “Shumensko” beer. The optical illusion of people, carrying with ease a case of beer in one hand, entertains onlookers, as well as the actual bag-owners.