This is a hand-built slab pot intended for use as a coffee mug. It is decorated on the front with a molded mouth inspired by the lips of Patricia Quinn (Magenta) in the opening musical sequence of The Rocky Horror Picture Show.
The cup is about 4 inches tall and 3.5 inches in diameter. It weighs 22 ounces. The teeth are glazed white; the lips, handle, and outside of the cup are glazed plum/red; and the outside of the mug is glazed a glossy black.