John Gill Commentary Esther 6:11

"Then took Haman the apparel and the horse, and arrayed Mordecai, and caused him to ride through the street of the city, and proclaimed before him, Thus shall it be done unto the man whom the king delighteth to honor." — Esther 6:11 (ASV)

Then took Haman the apparel, and the horse
The one out of the wardrobe, the other out of the stable, and the crown also no doubt, though no mention is made of it, since the king made no objection to it, indeed, commanded that nothing fail of what had been spoken; but this was included in the pomp and state of the led horse: and brought him on horseback through the street of the city; the most grand and public part of it, thus arrayed, and in this state: and proclaimed before him, thus shall it be done to the man whom the king delights to honour; (See Gill on Esther 6:9).