fool's cap

He puts on his fool’s cap and plays and dances and hopes he amuses.”

When the wind chill reaches 20 degrees, the only hat that will make you look like a fool is an actual fool’s cap, I decree, off the top of my head, which these days I am covering with a rabbit-fur ushanka.

"Troel" is quite the fantastical creature with his carrot-shaped nose, crooked fool's cap, wispy beard and blearily closed eyes.

Each one has a tall hat on his head, shaped very much like a fool’s cap, but set on awry to meet the contingencies of their tails that are twisted round their heads.

Death, with a fool’s cap and hood, a dagger of lath, and a bladder, holds up an hour-glass with his right hand; with his left he seizes the hand of a terrified lady accompanied by a gentleman, who endeavours to thrust away the unwelcome companion.