如故

如 = 口 + 女 : Mnemonic symbol: Asif ibn Barkhiya, according to the Qur'an, throne hauler at the court of king Salomon.

如 = 口 + 女 : Just inside the space station's entrance, Asif ibn Barkhiya, Rachel Rhinoceros and Bessie Coleman are playing monkey, throwing a mandarin as if they were little kids.

故 = 古 + 攵 : Mnemonic symbol: This character only appears in 做, so we don't need a strong mnemonic symbol. We should be able to refer to 故 when we think of 故事 or 故意. Because it fits nicely to its components, I'll think of it as in the meaning of 故墓, an old grave.

故 = 古 + 攵 : There is an ancient cloister in the space station's bathroom, and Gitta Giraffe once heard a story from her fellow astronauts that there's an old tomb inside with lots of treasure. One day she can't hold herself back anymore and deliberately breaks the cloister open using a sledgehammer.