屡试不爽

试 = 式 + 讠 : Sherlock Holmes is doing an eye examination with the goth in the space station's bathroom. Sherlock set up a table with differently sized letters on an advertising column and has the goth read out the letters.

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.

爽 = 㸚 + 大 : Sheldon Shrimp (shu) explores the anglepod's living room (ang3) and bumps into a hostile robot (大). As the robot is about to charge at him Sheldon quickly throws a bunch of pliers (㸚) at him. The robot eats the pliers and thinks they are quite crisp (爽) and refreshing (爽).