Pinyin final: "Ø2"

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.

时 = 寸 + 日 : Mnemonic symbol: a giant pocket watch.

The sun (日) asks Sherlock Holmes (sh) out for a coffee in the space station's kitchen (Ø2). Looking at his pocket watch (时), Sherlock sees he has time, winks and "thumbs up" (寸).

十 = 一 + 丨 : Mnemonic symbol: a holy cross. Sherlock Holmes (sh-) is investigating a very strange thing he found in the kitchen of the space station (-2): A big pyramid made of ten (十) crosses (十), which are in turn made out of flutes (一) and dinosaur bones (丨).

直 = 十 + 目 + 一 : Mnemonic symbol: someone straight edge. James II of England (zh) decided to go straight edge (直) in the space station's kitchen (Ø2), and he also decided that this means he won't listen to music anymore. The Eye of Providence (目) promptly plays some music on its flute (一) to tease him, whereupon the James II of England defends himself by holding up a cross (十).

吉 = 口 + 士 : Mnemonic symbol: "Giga" stems from a Greek word for "giant", so I'll represent 吉 by a giant.

吉 = 口 + 士 : The giant just arrived at the space station and is very hungry. In each hand he holds Joan of Arc and the bachelor captive and robs them for their mandarins which he longs for.

啤 = 卑 + 口 : Pocahontas (pi) is trying to refine mandarins (口) into beer (啤) as coal is refined into diamonds: by applying the sheer pressure of the Alps (卑). She missed that just inside the space station (Ø2) there's no gravity and therefore also no pressure from the Alps is exerted on the mandarin.

其 = 目 + 八 : Looks like a watchtower. The Queen of Hearts is on lookout on the watchtower just inside the space station's entrance. The Eye of Providence helps her to look out for intruders. They also spread some eight balls for possible intruders to trip on.

奇 = 可 + 大 : Mnemonic symbol: cappuccino (卡布奇诺)

The Queen of Hearts (qi) craves a cappuccino (奇) just inside the entrance of the space station (Ø2), and the robot (大) has one in his robot hands. He will give it to the Queen of Hearts under one weird (奇) condition: she shall prove that she's worth to receive the cappuccino by sitting on a bed of nails (可). The Queen agrees and pretends to be in much vain, but really she's just pretending since there is no gravity in the space station.

吴 = 口 + 天 : Mnemonic symbol: the water buffalo from Wu.

Willy Walrus (w) enters the space station (Ø2) with a big mandarin (口) in his hands. The water buffalo (吴) sees it and begins to pant heavily, slightly in panic. Fortunately there is an angel (天) around to calm him down and let him know that it's not the sun he's fearing.

植 = 木 + 直 : James II of England (zh) decided to go straight-edge (直), so he buried all his drugs in a hole in the space station's kitchen (Ø2) and, as a sign for his new beginning, plants (植) a Christmas tree (木) on top of it.

棋 = 其 + 木 : The Queen of Hearts (qi) got a little bored on the space station, so she started to play a game of chess (棋) against herself just inside the entrance (Ø2). She was so bored that she also invented new figures like the Christmas tree (木). It moves like the watchtower (其), but with each move it has a 1d20 chance to randomly distribute presents on the board.