Haman must honor Mordecai with acts which Haman himself suggested.
Very few things in the Bible are actually funny. However, taken in isolation, chapter 6 of Esther is probably the funniest event in the Bible. The king asks Haman what he thinks is a good way to honor someone. Haman thinks to himself, “Whom would the king delight to honor more than me?” (6:6). Then he tells the king what he, Haman, would like to have done for himself. The king then responds by telling Haman to do that for Mordecai. The irony is overwhelming—the humor irrepressible. The wrath of man is made to praise God.