弦外之音

弦 = 弓 + 玄 : Marie Curie (xi) is getting trapped by black lava (玄) in the anthill's kitchen (an2) and all she has is a composite bow (弓). She plucks the string (弦) of her bow so that the chord (弦) resonates with the lava, causing it to stop its flow.

外 = 夕 + 卜 : There's a hole in the wall of the airplane's bathroom (ai4), and from outside (外), a bat (夕) wants to enter. Willy Walrus (w) is very afraid of bats, so he does his best to hinder the bat from entering with a voodoo staff (卜).

之 = 丶 + Z : Mnemonic symbol: Sooo sleepy... "zZz" (the character looks like a "Z"). James II of England (zh) fell asleep in front of the space station (Ø1). He sleeps on a big petal leaf (丶), making loud "zZz" (之) sounds.

音 = 日 + 立 : Mnemonic symbol: a loudspeaker.

音 = 日 + 立 : Maud Younger and the Sun opened a pop-up store in front of the encampment. They sell vases and advertise them using loudspeakers, playing loud music and dancing to it.