Video: You can basically transform anything made out of metal into a working knife -- if you blast it with enough heat, pound it enough times with a hammer and then sharpen it over and over again. Even an old horseshoe can become an implement of danger. Watch as Miller Knives uses the U-shape of the shoe to cook up a pretty looking blade with a bad arse curved handle. That bend is sweet. By the end of the video, the blunt foot protector ends up so surprisingly sharp that it can slice just about anything with no effort.