WoodenBoat Diner Mug

Made of vitrified china, and patterned after the classic (no longer made) Victor diner mugs. It's the right shape to wrap your hands around, and enjoy your favorite 8 oz. Includes WoodenBoat logo on both sides, in red.

And, whilst we had been thinking of this for coffee, we were enlightened as to other uses, such as Captain Gerbe's Grog:
4 shots dark rum
4 shots soda water
2 shots lime juice
1 level teaspoon brown cane sugar
spritz of lime