亻
=
丿
+
丨
:
Mnemonic symbol: Rosa Luxemburg. She's quite radical, and her name starts with "r", just like "ren2". Also, 亻appears at the left-hand side of characters, and Rosa is a leftist as well.
Robinson Crusoe (r) and Rosa Luxemburg (亻) are having their favorite snacks in the encampment's kitchen: Rosa is eating a banana (丿) and Robinson is eating a dinosaur bone (丨).
呆
=
口
+
木
:
The fool wants to make fun of Don Quixote in front of the airplane. To fool him, he set up a Christmas tree to look like a huge animal by putting a mandarin on top which looks like the head of the animal. Don Quixote thinks he met his arch enemy and starts to charge the construction, much to the fool's delight.
堡
=
保
+
土
:
Beelzebub (b) created a new olace for his valuables. Inside of the aorta (ao3) he built a sand castle (堡). In the center of the castle (堡) there is a heap of clay (土) on which a safe (保) is resting.