Starbucks Korea Jeju Island Limited Edition Ceramic Mug 12oz City Coffee Cup New The Starbucks Jeju Island South Korea City Ceramic Coffee Mug is a collectible advertising piece featuring a design inspired by the Korean city of Jeju. Made by Starbucks in China, this original 12oz tea mug is a must-have for any coffee and tea enthusiast. With its unique theme and limited availability, this mug is a special addition to any Starbucks memorabilia collection.