忠君爱国

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).

君 = 口 + 尹 : Mnemonic symbol: 马天君 (see example sentences).

In front of the encampment, 马天君, the system administrator and Zeus all share a mandarin.

爱 = 受 + 𠂇 : Mnemonic symbol: A pair of swans who are in love.

爱 = 受 + 𠂇 : Albert Einstein hurt himself with a pair of scissors in the airplane's bathroom. He's already laying on a stretcher carried by two swans who are deeply in love with each other, being transported to the next hospital. A hospital... of love.

国 = 囗 + 玉 : Mnemonic symbol: a nation's flag. Let's say the Chinese flag.

In the observatory's kitchen (o2) Gitta Giraffe (gu) is practising her ballet performance. She got a whole crate (囗) full of jade bracelets (玉) and flags (国) and fixed one flag to each jade bracelet. This makes a perfect combination for throwing the ring with the flag waving behind it and catching the ring again after a few pirouettes.