I love this!! I see this iron horseman still has his headgear on, although I know that officials remove it each night. Then a whole new group of students horse around with the traffic cone again to restore the "look". Sometimes he even sports a raincoat!!
I saw this incongruity earlier in Carol and Tim's galleries, and each image has its own story to tell. Vantage point is the key to each -- your statue is not only bizarrely topped, but Iron Duke seems even more impatient with the gag here.