Pringles partnered with Walgreens on a "Mystery Flavor" sweepstakes that gave consumers a chance to win $10,000. 

Consumers could enter the sweepstakes by buying a can of the Pringles mystery flavor at a Walgreens store, then uploading a picture of their receipt to kfr.com/pringlesmystery and entering their guess as to what the mystery flavor is. Consumers who guessed correctly were then entered for a chance to with the $10,000 prize.