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.
粹
=
卒
+
米
:
The rubber chicken soldier (卒) stored a sack of extra-pure (粹) rice (米) essence (粹) in the Eiffel Tower's bathroom (ei4), but Kitty Cat (cu) mistook it for her litter box and messed it up.