Mr. Harnden was short and roly-poly, with a little round mouth and big round eyes, and a curlicue of topknot that he wagged in emphasis as a unicorn might brandish his horn.
"When Egypt Went Broke"
Holman Day
It's always hemming and humming and a heise of the neck, and her head up like a Cochin-China, with a topknot, and 'How d'ye do?
"Capt'n Davy's Honeymoon 1893"
Hall Caine
That's off the end of the pole where it's carved into kind of a fancy topknot.
"Tom Slade with the Boys Over There"
Percy K. Fitzhugh