卢

卢 = ⺊ + 尸 : Mnemonic symbol: a ruby.

Lenny Lemur (lu) discovered that there is a ghost (尸) floating through the space station's kitchen (Ø2) every night. Lenny started to camp the ghost and shoot the pennant (⺊) at the top of its head with an arrow to sell the pennant shards for a lot of rubies (卢).

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.

Sherlock Holmes (sh) is investigating a crime scene with a corpse (尸) in front of the space station (Ø1). The victim's ghost (尸) is trying to give him hints from the afterlife about their killer.

⺊ = 丨 + 一 : Mnemonic symbol: ⺊ looks a bit like a pennant.

Someone stuck a flute into the middle of a hollow dinosaur bone to conduct studies on the speed of sound. At the one end of the hollow dinosaur bone is an answering pennant, used in the International Signal Code primarily for the reply "signal is received and understood", which should be raised as soon as the person is hearing the sound made by the flute.