Starbucks Grey/Black Speckled Ceramic Desktop Mug Silicone Nonslip Bottom with press-in Lid The Starbucks Grey/Black Speckled Ceramic Desktop Mug Silicone Nonslip Bottom with press-in Lid ($29) will be your work from home best friend. Image Source: amazon.com Starbucks Grey/Black Speckled Ceramic Desktop Mug Silicone Nonslip Bottom with $29 from amazon.com Buy Now