國槐

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.

槐 = 木 + 鬼 : Helga Horse (hu) set up a Christmas tree (木) in the airplane's kitchen (ai2), but soon after a demon (鬼) possessed it and morphed it into a Chinese scholar tree (槐).