Diamonds on the soles of your shoes

Today's surprise never-seen-before: 3 boys, working on old shoes. One boy removes the soles from the old shoes, another one keeps only those parts that are still useable and adds a new sole to the shoes. The third one, using those parts, makes "new" shoes from it. Incredible. And their workshop is the street. Not exactly a job that produces diamonds, but for them those old shoes are their living. And the speed in which they transform the old shoes into new footwear is astonishing. What would Jimmy Choo think of it? .