When a pet gets lost, people tend to search for it by printing ads and hanging them throughout the streets. The more ads they print, the better their chances of finding them.With our HP XL cartridges we could help someone to search for a lost pet.In order to implement this idea, we searched for one person who recently lost a pet on the streets of Mexico City. Then, we gave them an HP printer and 3 XL cartridges so they could print a giant lost dog ad made from thousands of regular sized printed sheets.

The giant lost dog ad we posted on the street was seen by thousands of people. We received 200+ calls during the first week. Soon it was viralised on the Internet and social media: 20,000+ views on YouTube during the first 2 weeks after the implementation. Thousands of users shared the case through social media in order to help the cause. And all this was achieved through a very low and affordable cost: 3 HP XL cartridges, some recycled paper sheets, and the valuable help of good-willed volunteers.