Starbucks Christmas Holiday 2023 Mermaid Siren Iridescent Oil Slick Tumbler NEW. This Starbucks tumbler is perfect for coffee and tea lovers who want to enjoy their favorite beverage in style. The mermaid siren iridescent oil slick design is eye-catching and unique, making it a great addition to any collection. Made in China, this original and authentic tumbler is perfect for those who want to sip their drinks in style while showing off their love for Starbucks. The tumbler is perfect for use at home or at work and is sure to become a favorite among your friends and family. With its new condition, this Starbucks tumbler is ready for immediate use and will provide you with years of enjoyment. The tumbler's bright and vibrant colors will add a touch of fun to any drink, making it the perfect gift for any coffee or tea lover.