Check out this great design from cafepress Bridal Veil Falls Mug
Bridal Veil Falls Mug. This beautiful shot of Bridal veil falls shows how low the water rate is this year due to the drought they have been suffering. This famous waterfall in Yosemite National Park is barely a trickle. Product Information Small measures 3.75" tall, 3" diameter; Mega measures 4.5" tall, 3.75" diameter Small holds 11 oz.; Mega holds 20 oz. Black color-changing mugs available in small only and are heat sensitive. The color-changing mug starts out all black in color. Simply add any hot liquid to the mug and watch as the mug changes from black to white and your unique design is revealed! Dishwasher and microwave safe