Thirstystone Coasters - Thy Will Be Done Sale! from 1499 /per Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Sandstone absorbent coaster with beautiful Puzzles That Rock images. 4 pack coaster set. 4 3/8 x 4 3/8 with cork backing. SKU:63067101b19b6 Tweet