同归于尽

同 = 冂 + 𠮛 : Tommy Turtle (tu) is stapling (冂) a magical scroll (𠮛) to the wall of the engine's kitchen ((e)ng2). On it he wrote that he's looking for two twins (mnemonic symbol for 同).

归 = 刂 + 彐 : Gitta Giraffe (gu) was given the responsibility (归) to guard the Eiffel Tower. In front of it (ei1) she stands guard holding a tiny kitchen knife (刂) in her hand in case of attacks, and a pig's snout (彐) on her head as kind of a helmet.

归 = 刂 + 彐 : Gitta Giraffe (gu) was given the responsibility (归) to guard the Eiffel Tower. In front of it (ei1) she stands guard holding a tiny kitchen knife (刂) in her hand in case of attacks, and a pig's snout (彐) on her head as kind of a helmet.

于 = 亅 + 二 : Mnemonic symbol: prepositions (in, at, on, to, ...) are what glue the sentence together. Honey is as sticky as glue, so I'll represent 于 by a honey jar.

Yu the Great (于) was assigned to repair the electronics of the space station's kitchen (Ø2), but instead he was snacking honey from a honey jar (于). Unfortunately his capacitor (二) got stuck in the honey and now he has to use a crowbar (亅) to lever it out.

尽 = ⺀ + 尺 : Someone or something is using up all the blossoms in the encampment's bathroom, each day one more is missing. Joan of Arc wants to find out when they will be used up, so each day, she measures the remaining blossoms with a tape-measure.