From the Winterberry Collection. As fall turns to winter, bright holly berries make their appearance. Winterberry dinnerware by Pfaltzgraff is the holiday classic that brings this timeless motif to life in elegantly sculpted dinnerware and serveware, beautiful glassware, and joyous giftware. Made of high-quality dolomite for strength and durability, this delightful mug takes on the form of a whimsical Santa in vibrant Christmas colors, making it perfect for enjoying, tea, coffee, hot cocoa, and other favorite beverages throughout the season.