"The Hobby Horse's" costume was a horse's hide, real or imitated.
But by this time the vicar was on his hobby horse, and did not gauge the significance of the speech.
You'll find this 'career,' as you call it, is a good deal like a hobby horse.
Squire Lovell is seen on his horse (a hobby horse); an old woman and a young woman scolding within.
Thus the heads of the horses ...