Investors will profit if they devote attention to the dry subject of dry shipping, Jim Cramer told viewers of his "Mad Money" TV show Wednesday. Nobody talks about dry bulk shipping stocks because they're boring. "I can't throw pies or wear funny clothes when I talk about dry bulk shipping," Cramer said. The money to be made on these stocks, however, is very exciting; they provide "huge and reliable dividends," he said. Dry bulk shipping stocks have risen enormously since July, when Cramer recommended them. "This industry is one of the great bull markets in the world right now," he said.