maozhang.net
A red five-pointed star - supposedly representing either the unity of the peoples of five continents or the clenched fist of a determined revolutionary - became (despite Marx's objections to symbols as instruments of domination) an internationally recognised symbol of Communism/Marxist-Leninism. It became particularly associated with China during the 1930s, due in no small part to Edgar Snow's book; and increasingly so after the Sino-Soviet split when it was used to distinguish Maoism from the hammer and sickle revisionism of the USSR.