Shop › “Gravy Sluts of America” mug by Liz Born Image 1 of 3 Image 2 of 3 Image 3 of 3 “Gravy Sluts of America” mug by Liz Born $65.00 sold out If you know, you know. Foodsafe, microwave and dishwasher safe. Stoneware thrown by hand, with silkscreen slip transfer. Sold Out Added! If you know, you know. Foodsafe, microwave and dishwasher safe. Stoneware thrown by hand, with silkscreen slip transfer.