Why a Horse and Unicorn Wedding Cake Topper? While some might think that unicorns and horses can't live together, we think opposites attract. This 6-1/4" tall polystone cake topper features our Magical Unicorn Mask and our Creepy Horse Mask on a bride and groom. Everyone knows a couple that does things a little bit differently, and we think this is the perfect decoration for them to have on their cake. I don't know if you've herd, but this helps couples have a stable relationship that will turn out to be a whinnier.