Ben Cooper, Inc. was a privately held American corporation that primarily manufactured Halloween costumes from the late 1930s to the late 1980s. It was one of the three largest Halloween costume manufacturers in the U.S. from the 1950s through the mid-1980s. The company’s inexpensive plastic masks and vinyl smocks were an iconic American symbol of Halloween from the 1950s to the 1970s, and Cooper has been called the “Halston of Halloween” and the “High Priest” of Halloween.