扣
=
口
+
扌
:
Karl Marx (k) manufactures a new button (扣) out of a mandarin (口) in the outhouse's bathroom (ou4). He does so by grapping the mandarin tightly in one hand, and carving out the button out of the peel by rotating a toy claw (扌) around the mandarin with his other hand.
儿
=
丿
+
乚
:
Mnemonic symbol: "son" (儿) sounds similar to "Sun" like in "Sun Wu Kong", so it's gonna be represented by the monkey king. Albert Einstein (Ø-) and Sun Wu Kong (儿) are fighting in the space station's kitchen (-Ø2). Their weapons: Albert Einstein has a shovel (乚), and Sun Wu Kong has a banana (丿).