On a side street in Greenpoint, Nik Bentel's studio is quietly nestled among a string of auto body shops. The studio itself is a high-ceilinged garage, converted into a hybrid workspace and showroom for Bentel and his team. A cinderblock wall lined with shelves showcases the product designer's creations over the years: a knife with a MetroCard for the blade, a 16-wheel skateboard, an "I