The past years Starbucks has been amazing at identifying new crazes and incorporating them into their product. Previously, they have rolled out limited-edition Pokémon Go Frappuccinos and Frappula Frappuccinos around Halloween. Afterwards, they have launched the Unicorn Frappuccino which was inspired by unicorn-themed food and drinks trending on social media. With its bright colors and limited availability, Starbucks got thousands of impressions on their post about their new drink.
Starbucks created a limited and aesthetically pleasing product and used social media and influencers to create a buzz around the product and build a huge suspense for the consumers.
Identify a craze and jump on it. Make a limited-edition to create an urgency among your customers. Make the publicity and social media buzz last longer than the actual product. Make it shareable.