The Penguin is a Gotham City mobster who fancies himself the "Gentleman of Crime". He is most often seen wearing a monocle, top hat, and tuxedo while carrying his signature umbrella. The character appears most times as a short, obese man with a long nose. Penguin uses high-tech umbrellas as different tools. His umbrellas have been used as guns, gas guns, swords/knives, a mini-helicopter and many other unconventional tools. The Penguin owns and runs a nightclub called the Iceberg Lounge which provides a cover for his criminal activity. Batman sometimes uses the nightclub as a source of criminal underworld information. Unlike most of Batman's rogues gallery, the Penguin is completely sane and in full control of his actions, giving him a unique relationship with Batman. According to his creator Bob Kane, the character was inspired by the advertising mascot of Kool cigarettes in the 1940s; a penguin with a top hat and cane. Co-creator Bill Finger thought that the image of high-society gentlemen in tuxedos was reminiscent of emperor penguins. His main colour is usually purple.