刻

刻 = 亥 + 刂 : Mnemonic symbol: an engraver.

The boar cannot believe it when it meets Karl Marx in the elevator's bathroom! Bewildered it asks for an autograph but has nothing except for a kitchen knife and an engraver. It takes Karl Marx a quarter of an hour to engrave his message in the kitchen knife: "Dear boar, keep on fighting capitalism! Yours, Karl."

亥 = 亠 + 厶 + 人 : Mnemonic symbol: a boar.

亥 = 亠 + 厶 + 人 : Hamlet is terribly afraid by a beret-wearing boar in the airplane's bathroom, but fortunately Neanderthal man is there to protect him and to fight of the boar with a huge fake nose.

刂 = 丨 + 亅 : Mnemonic symbol: a kitchen knife. Don Quixote (d) is showing off his special knifes in front of the aorta (ao1). One is made from a dinosaur bone (丨), and the other is made from a crowbar (亅).