Shop › Granite wren mug Image 1 of 1 Granite wren mug £28.00 Stoneware mug with raised wren design and granite glaze. Holds approximately 350 ml. Add To Cart Added! Stoneware mug with raised wren design and granite glaze. Holds approximately 350 ml. You Might Also Like Small stoneware pale blue cup £22.00 Green nib cup £28.00 Blue cappuccino cup £28.00 Granite abstract bird mug £28.00 Sold Out Small turquoise cup £22.00