亠
=
丶
+
一
:
Mnemonic symbol: 亠 looks like a beret. Tecumseh (t) is killing time in the Outhouse's kitchen (ou2) by playing a game. His goal is to blow a petal leaf (丶) into a beret (亠) by blowing air through a flute (一).
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.