If done right a combination of sports (with broad appeal across many target markets) and social media can have a big impact. For some good examples, check out these two articles from the Huffington Post (posted December 26, 2013 and part 2 on January 13, 2014). The author of the article “scoured the web for five examples of the most creative, results-driven sports influencer endorsements that have aligned brand values with the right sports influencer, reached the right target audience, and generated real results.” The examples also provide some concrete results.
This should work well when you cover endorsements, advertising and promotion. If your students are like mine, many of them love sports and brands like Nike, Foot Locker, and Mercedes which (along with two smaller brands) are featured here.