㐌

也 = ㇆ + 丨 + 乚 : Mnemonic symbol: an excavator. A plow and a shovel are both tools for moving earth, and an excavator can be used to dig up dinosaur bones.

Maud Younger (y) is digging for dinosaur bones (丨) in the elevator's living room (e3). First she used a plow (㇆) to destroy the floor, then she used an excavator (也) to pull out the dinosaur bone surrounded by lots of earth. Finally she uses a shovel (乚) to remove the remaining earth manually so as to not damage the precious dinosaur bone. (The stroke order is ㇆丨乚)

也 = 乜 + 丨 : Maud Younger (y) wants to split a dinosaur bone (丨) in half in the elevator's living room (e3) using the shovel of an excavator (也). She has to squint (乜) her eyes to precisely hit the center point of the dinosaur bone.

𠂉 = 丿 + 一 : Mnemonic symbol: 𠂉 looks like a key.

Imagine a banana you can't open without putting a key into each of the holes of a flute which is painted on its peel.