國書

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.

书 = 丨 + ㇆ + 丶 : Sheldon Shrimp (shu) is enjoying a good book (书) in front of the space station (Ø1). Because he is lazy, he built a thingy to hold the pages in place with a dinosaur bone (丨) and two plows (㇆). He is laying very comfortable on a petal (丶) serving as sofa.