一

未 = 一 + 木 : Shortly after finishing a new installation in the Eiffel Tower's bathroom, Ai Weiwei is imprisoned by Willy Walrus, because—out of all places—Ai Weiwei put his new installation right into Willy Walrus's toilet. Ai Weiwei's installation is a Christmas tree with a tiny, slightly tilted flute on top. Ai Weiwei would really, really like to correct the tilted flute, but so far, Willy Walrus has not yet let him out.

兴 = 小 + 一 + 八 : I would say this one looks definitely like a hedgehog, but since there's already a character for hedgehog, let's call this one a sea star.

兴 = 小 + 一 + 八 : Marie Curie found a sea star attached to a big eight ball in the engine's bathroom. As she is a curious and interested scientist, she wants to investigate the sea star, so she pokes it with a flute and tries to tickle it with a daisy.

夫 = 二 + 人 : In front of the space station, Neanderthal Man and a construction worker are busy exchanging a broken capacitor. When Frieda Fox floats by they whistle at her because they think she's hot, but Frieda is just annoyed.

夫 = 二 + 人 : Mnemonic symbol: a construction worker

末 = 一 + 木 : Mahatma Gandhi set up a giant flute on a Christmas tree, trying to raise awareness for the Roof of the World in the observatory's bathroom. He chose the flute and the tree as symbols for the sky and nature, but as Jehovah’s Witness enters, she thinks it's the sky that has fallen down on our heads, and the end of days is ultimately there.

灭 = 一 + 火 : In the elevator's bathroom (e4) Marilyn Monroe (mi) was playing the flute (一) so hot that it is on fire (火) now! Luckily there's a fire extinguisher so that she can put it out (灭).

丛 = 从 + 一 : Kitty Cat (cu) lost her book collection (丛) in the underbrush (丛) in the engine's kitchen ((e)ng2). The underbrush consists of the legs of rubber chicken (从) and Kitty Cat has a hard time searching through the chicken. She is using a flute (一) as a bushwhacker to aid in her search.

册 = 一 + ⺆ + ⺆ : In the bathroom of the elevator (e4) the King of Chu (c) dug up all his photo collections of flutes (一) from all over the world. He is stapling (⺆) together random photos to publish different books (册) about flutes.

丙 = 一 + 人 + 冂 : A bronze medal. Brunhilde and Neanderthal Man took part in a scavenger hunt competition and won the third price. They are still holding the map with which they found a flute inside engine as they receive their reward, a bronze medal.

在 = 一 + 亻 + 土 : Zorro (z) and Rosa Luxemburg (亻) exist (在) in the airplane's bathroom (ai4). Rosa is in the middle of balancing a flute (一) on her head and on a pile of clay (土). Zorro uses his rapier to inscribe "Z" into the flute, so as to mark that the pronunciation of "在" begins with "z".