膓

勿 = 丿 + 勹 : Mnemonic symbol: bat wings.

勿 = 丿 + 勹 : The elephant wants to eat a banana in the space station's bathroom, but Willy Walrus suddenly flies by (using bat wings), snatches the banana away and shouts "no!"

旦 = 一 + 日 : Mnemonic symbol: A big mug, since many people start the day with a mug of coffee.

Don Quixote (d) meets the sun (日) early in the morning (旦) in the anthill's bathroom (an4). Don Quixote is full of energy and can't wait to start into a new adventure, but since the sun is a morning grouch who only just started drinking her mug of coffee (mnemonic symbol for 旦) she cannot stand it and beats him over the head with a flute (一) to calm him a bit down.

月 = ⺆ + 二 : Yu the Great (yu) is modelling a moon (月) in the elevator's bathroom (e4). He uses a stapler (⺆) to staple a lot of capacitors (二) together to form a moon shape, while the real moon is sitting for him.

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.