was a Halloween costume company that was popular in department stores from the 1960s through the early 90s. The company produced a wide variety of costumes, including many characters from television shows, cartoons and comic strips. Ben Cooper began producing Sesame Street costumes in 1980, with a set of seven: Big Bird, Ernie, Bert, Cookie Monster, Oscar the Grouch, Super Grover and the Count. The costumes included a mask, a vinyl smock, and a trick or treat bag. In 1981, Ben Cooper produced another set of three costumes, in a one-piece poncho style: Big Bird, Cookie Monster and Oscar.