This is a mug shaped like Queen Amidala, a character from the science fiction Star Wars films. She is dressed in her red formal gown and headdress.
Queen Amidala was part of a set of Star Wars Prequel trilogy mugs released at the same time, also including Emperor Palpatine, Darth Maul, and Jar Jar Binks.
These are a tikified re-imagining of the drinking vessels that might be used if the Mos Eisley Cantina in Star Wars was actually a tiki bar.