头皮屑

头 = ⺀ + 大 : Tecumseh (t) is inspecting is depiction in the outhouse's kitchen (ou2). He's depicted as having a skull (mnemonic symbol for 头) head (头) with two petal leaves (⺀) in the eye holes, and having a robot (大) body.

皮 = ㇖ + 丿 + 丨 + 又 : Mnemonic symbol: a cow's hide.

皮 = ㇖ + 丿 + 丨 + 又 : Just inside the entrance of the space station Pocahontas destroys her cow's hide with a sickle because she decided to go vegan. Instead of leather she'll wear a banana peel as coat, boxing gloves as shoes and a big dinosaur bone as long hat.

皮 = ㇖ + 丿 + 丨 + 又 : New mnemonic symbol, since I also use the cow's hide for 革: leather shoes.

屑 = 尸 + 肖 : Marie Curie (xi) and the little prince (肖) are frequently visiting a ghost (尸) in the elevator's bathroom (e4). The ghost is feeding on their dandruff (屑), therefore it's a win-win situation for all of them, but secretly they feel it beneath their dignity (不屑).