吴忠市

吴 = 口 + 天 : Mnemonic symbol: the water buffalo from Wu.

Willy Walrus (w) enters the space station (Ø2) with a big mandarin (口) in his hands. The water buffalo (吴) sees it and begins to pant heavily, slightly in panic. Fortunately there is an angel (天) around to calm him down and let him know that it's not the sun he's fearing.

忠 = 中 + 心 : Julian Giant Squid (zhu) plays darts every day in front of the engine ((e)ng1). He is very loyal (忠) to his club and even has a darts board (中) tattooed onto his heart (心).

市 = 亠 + 巾 : Mnemonic symbol: a supermarket.

Sherlock Holmes (sh) started a supermarket (市) in the space station's bathroom (Ø4), but all he has for sale right now are berets (亠) and towels (巾). He should have opened it at the beach!