走形式

走 = 龰 + 土 : Mnemonic symbol: a Nordic walking pole. Zorro (z) is fighting Neanderthal Man (bottom of 龰) in the outhouse's living room (ou3). Neanderthal Man uses his pennant (top of 龰), and Zorro uses a Nordic walking pole (走). Zorro overcomes Neanderthal Man by using a dirty trick: he throws some dirt (土) at Neanderthal Mans face, who is blinded and hurts his foot with his pennant (the pennant pierces his foot: 龰). Just at this moment Zorro uses the opportunity to sedate Neanderthal Man and rams a syringe (龰) into his shoulder.

形 = 开 + 彡 : Marie Curie (xi) is modding her fake Santa Clause beard (彡) into a new shape (形). With a bottle opener (开) she carves the beard in the engine's kitchen ((e)ng2) so that it gets a fractal (形) shape (形).

式 = 工 + 弋 : I'll use a specific style as mnemonic symbol: 哥特式, gothic.

Sherlock Holmes and the goth are celebrating a Viking festival in the space station's bathroom. They don't have trunks to throw around, so they use a steel beam. They also celebrate by practising archery. In zero gravity it is easy for them to set one world record after the next.