硕果仅存

硕 = 石 + 页 : There is a large, huge (硕) rock (石) blocking observatory's bathroom (o4). Sheldon Shrimp (shu) tries to clear it off by wrapping it in a huge (硕) sheet of paper (页) because he heard "paper beats rock". Of course it doesn't work because Sheldon is not a learned person (硕士).

果 = 木 + 田 : Gitta Giraffe (gu) is not feeling well inside observatory (o3) and decides to eat healthy. To plant a field (田), she first distributes Christmas trees (木) as manure, then puts a field on it and finally plants grapevines. Soon she will be eating grapes (果) and feel better.

仅 = 亻 + 又 : Joan of Arc and Rosa Luxemburg are fighting a boxing match in the Forbidden city. There are barely / merely / only a few seconds of the last round left.

存 = 一 + 仔 : Mnemonic symbol: a floppy disc. Kitty Cat (cu) wants to protest against the law that women have to wear skirts, so wearing jeans (仔) she dances and plays a flute (一) in the encampment's kitchen ((e)n2) and records her demonstration on a floppy disc (存) to upload it later to her livejournal.