How To Leave Without Anyone Noticing travel mug. Step One: Forget that. Step Two: Make a big deal about exiting. Step Three: Make sure everyone notices. Step Four: This is what we like to call an "alibi" and it will be important later. This is a handmade ceramic travel mug created by me in my New Jersey studio. This is a stoneware mug measuring 6.25 in H x 3.5 in W x 3.5 in L with a black food grade plastic lid- a great eco friendly alternative to paper cups! Holds 16 oz. Dishwasher and microwave safe. Great office, work, to go mug