World At 20 inches tall, Pumuckel the pony is vying for the title of world’s smallest horse November 7, 2022November 9, 2022 Camille Fine, USA TODAY Comments Off on At 20 inches tall, Pumuckel the pony is vying for the title of world’s smallest horse Meet Pumuckel, a hopeful Guinness World Record holder and champion for all short kings and queens of the horse kingdom.