They don't look like the jesters I've seen, but...
Quote: Buddhist devas are not omniscient. Their powers tend to be limited and what is important they are not morally perfect. The devas of the lower worlds of the Kamadhatu experience the same kind of passions that humans do, including lust and anger.
I think this ^^ is rather telling of some of the jester-like entities I've encountered. They can have very human-like emotions and personalities.
"Science without religion is lame. Religion without science is blind" - Albert Einstein
"The Mighty One appears, the horizon shines. Atum appears on the smell of his censing, the Sunshine- god has risen in the sky, the Mansion of the pyramidion is in joy and all its inmates are assembled, a voice calls out within the shrine, shouting reverberates around the Netherworld." - Egyptian Book of the Dead
"Man fears time, but time fears the Pyramids" - 9th century Arab proverb