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.
boat / ship / craft / to navigate / to sail / to fly
航
=
亢
+
舟
:
Hamlet (h) decided to run away to sea 13 years ago. Now, having sailed (航) the seven seas, he's an accomplished captain and looking out of his yellow submarine (舟) wearing a turtleneck sweater (亢) in the anglepod's kitchen (ang2).