Answer:
They did a doodling design contest.
Explanation:
Taking a cue from customers who have been doodling designs on cups for years, Starbucks is launching a White Cup Contest. The contest encourages customers in the U.S. and Canada to decorate a Starbucks cup with customized art, take a photo of it, and submit the design through social media using #WhiteCupContest
learn more here: https://stories.starbucks.com/stories/2014/starbucks-invites-you-to-decorate-its-iconic-white-cup/
