跨国

跨 = ⻊ + 夸 : Karl Koala (ku) found a strange quark (夸) in the ashram's bathroom (a4) and to not step on it with his cowboy boots (⻊) he steps across (跨) the strange quark.

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.