略知皮毛

略 = 各 + 田 : Loki (lü) wants to play a prank on the elevator's visitors. In the bathroom (e4) he plants a field (田) of stars (各) around the toilet. His plan (略) is that the visitors will then have to step on many spiky stars if they want to reach the toilet.

知 = 口 + 矢 : Mnemonic symbol: Francis Bacon is attributed to have stated "scientia potentia est", "knowledge is power". I'll thus represent 知 by Francis Bacon. Francis Bacon (知) and James II of England (zh) are playing darts (矢) in front of the space station (Ø1). Because they lack a dart board they just use a mandarin (口).

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.

毛 = 丿 + 二 + 乚 : Mahatma Gandhi finally found a way to get some hair again: Just inside the aorta's kitchen, he used a shovel to dig up several Cartesian coordinate systems. He rejoices, because finally his dream of being a punk once again can finally come true.

毛 = 丿 + 二 + 乚 : Mahatma Gandhi finally found a way to get some hair again: Just inside the aorta's kitchen, he used a shovel to dig up several bananas. Using a charged capacitor, he fuses them to his head.