卖国

卖 = 十 + ㇖ + 头 : Mahatma Gandhi (m) wants to get rid of his worldly possessions and sets up a flea market in the airplane's bathroom (ai4). He displays a cross (十), a sickle (㇖) and a skull (头) which he wants to sell (卖), so he attached price tags to all of them.

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.