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).
(bound form) to divine / to forecast or estimate / (of a place to live etc) to choose
卜
=
丨
+
丶
:
Mnemonic symbol from "to divine" and the shape of the character: a voodoo staff.
Bruno Bear (bu-) tries to divine (卜) the future in the space station's living room (Ø3). He places a petal (丶) in the middle of the room as an offering and starts a magic ritual with his voodoo staff (卜). The staff transforms the petal into a dinosaur bone (丨). Bruno divines that the staff was trying to tell him that all things are mortal and must come to an end.
Mnemonic symbol: this character looks a bit like a bat, and bats come out of their caves at dusk. I could see the upper left 丿 as part of the bat's right wing, ㇇ as the body/head and 丶 as the eye of the bat.
Xi Shi (xi) goes out for a space walk in front of the space station (Ø1) in the evening (夕), where she observes a space bat.