攻其不備

攻 = 工 + 攵 : In front of the engine, Gitta Giraffe attacks a steel beam using a sledge hammer. Who will win???

其 = 目 + 八 : Mnemonic symbol: the shape of 其 looks like a watchtower. The Queen of Hearts (qi) is on lookout on the watchtower (其) in the space station's kitchen (Ø2). The Eye of Providence (目) helps her to look out for intruders. They also spread some eight balls (八) for possible intruders to trip on.

不 = 丆 + 卜 : Bruno Bear (bu) is setting up a wind wheel (丆) with a voodoo staff (卜) in the space station's bathroom (Ø4). He also puts a "forbidden" sign (mnemonic symbol for 不) on it, to make clear that it may not (不) be stopped.

备 = 夂 + 田 : Beelzebub prepared a field of high heels in the Eiffel Tower's bathroom. He wants to shock any person entering the bathroom with society's expectations towards what people should wear on their feet.