1. Thirstystone Thirstystone Sandstone Coaster Set, All Natural Stone, Non-Slip Backing, Drink Absorbent & Protects Table, Teal Fleur de Lis (Set of 4), Green, TSMA8 Looking for a coaster set that is both stylish and safe? Look no further than the Thirstystone Sandstone Coaster Set. Made from all natural stone, this set is non-slip