In December 1987, Gilmour persuaded Waters to sign an agreement allowing him to use the Pink Floyd name. Waters, however, refused to allow him to use the band's giant trademark flying pig balloons. To Waters's dismay, Gilmour found a solution. "If the pig had been exactly the same as the pig that I designed," Waters later remarked, "I could have stopped them from using it. F--- them..."
That's right. Gilmour simply designed a modified pig -- with giant porcine testicles.