The Winged Stallion, an incredibly rare trophy made from Opaque Lutz, and coated with a layer of 24 Karat gold, is awarded to trainers of royal free-jumping horses that conqured barriers over 8 feet tall.
(Yes, I made that up lol. The tallest barrier ever cleared by a horse (with a rider) was 8 foot 1 inch, so 8 feet isn't impossible for a horse without a rider)