There’s no doubt that the use of QR codes has grown tremendously in the last year. You can now see them everywhere — from airport parking lots to the pages of magazines. Many companies are using QR codes in big advertising campaigns as well, including Heinz who recently ran a QR code marketing campaign to support veterans, and now Nestle Purina.

Purina is running a holiday program through the end of this month to drive consumer interaction. They’re putting QR codes on packages of Purina One cat food, and once scanned, $1 will be donated to pet shelters.

The company will donate up to $30,000 this holiday season, which is dependent upon how many scans their QR codes receive. The QR codes are placed on three-and-a-half and seven pound bags of Purina One dry cat food in two flavors — salmon and tuna and chicken and rice.

Mobile Marketer said of the company’s holiday initiative, “By using on-package mobile bar codes, Purina is able to leverage its existing merchandise to give consumers both an additional piece of content and a way to connect deeper with the company via a charity donation.”

The article also quoted Nida Bockert, senior brand manager at Purina One brand cat food, as saying, “We know that approximately 14 million mobile users scan QR codes, and so many pet owners are using mobile devices that this is another way for them to interact with the brand.”

To give users another way to participate, Purina also threw social media into the mix. Visit the company’s Facebook page to take a four-question quiz about pet shelters and adoption. Purina will donate one bowl of food to pet shelters for every quiz completed. I just took the quiz (it’s easy and fast) and they donated 5 bowls of food to pet shelters on my behalf thanks to bonus questions.

Let us know: Have you used QR codes in your marketing efforts yet?