The "James Bond" villain known as Oddjob uses a specially designed bowler hat as both an article of clothing and as a weapon. Oddjob is a henchman of the titular villain in both the novel and the film adaptation of "Goldfinger."
Oddjob's bowler hat is described in the novel and shown in the film. This weapon is dangerous not only because it has a razor-sharp edge but also because Oddjob is skilled in throwing it accurately. In the film, the hat is implied to have the ability to decapitate a person, though this implied functionality is never actually shown in detail onscreen.