Jessica Schreiber is fascinated by trash. And in New York City, where she runs a fashion recycling startup, there is plenty of it. In 2016, Schreiber left the agency to launch Fabscrap, a nonprofit that heads directly to the city’s world-famous fashion industry to pick up and resell textile cast-offs — yards of cotton, strips of wool, pieces of luxurious silk, linen and leather. As commercial waste, the scraps aren’t eligible for the city’s residential recycling programs, and, more often than not, end up in landfills. “That to me was unacceptable,” she said.