蒙古國

蒙 = 艹 + 冖 + 一 + 豕 : Mahatma Gandhi (m) is leading a swine (豕) through the mist (蒙) in the engine's kitchen ((e)ng2) by playing the flute (一) for her. He wants to pickle her with artificial lawn (艹) and already lifted the cooking top (冖) of his kettle.

古 = 十 + 口 : Mnemonic symbol: at least on German maps, this character actually resembles a cloister.

Oh no! Gitta Giraffe (gu) found that the golden cross (十) broke off of the cloister (古) in the space station's living room (Ø3)! She skewers a mandarin (口) on top of the cloister so that she can skewer the broken off cross back on to fix it.

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.