16 oz New Haven Challenger style Mugs. Our New Haven mug is a contemporary best selling ceramic coffee mug that has a large, drinker friendly handle. Its size and shape appeals to every tea, coffee & hot chocolate lover. This bistro mug comes in with a unique trendy accent band in four colors that will add a sense of style to any event. These large cups make great customized drinkware when the personalized mugs are given to customers or guests as a party favor.