A cane gun is a walking cane with a hidden gun built into it. Cane guns were used as last-resort emergency weapons. Cane guns now are very rare to find and are mostly in the hands of private collectors and museums. Cane guns are usually fitted to fire large handgun type cartridges or large shotgun cartridges like the 12-gauge which is perfect for low pressure conditions of normal guns and excel in the high pressure conditions of a cane gun , with each cane gun holding a single cartridge, usually a high power type. Other types of cane guns are blow dart cane guns and flare gun canes. The cane gun was made famous in Ian Fleming's novel Casino Royale.