Drink in the healing powers of natural minerals as you savor your favorite brew with these uplifting mugs by artisan potters Donna and Randall Rollins . The artists infuse their hand-thrown ceramic mugs with various minerals during the firing process and coat each one with a lustrous, glossy glaze. To finish, they crown each mug with one of four healing stones, each one possesses its own unique qualities. Like "worry stones," these lovely minerals are smooth to the touch and can be rubbed gently to focus your mind and lift your mood as you enjoy a soothing cup of tea or your morning coffee.