中国邮政

中 = 丨 + 口 : Mnemonic symbol: a dart board, because you always try to hit the center.

Julian Giant Squid (zhu-) is throwing dinosaur bones (丨) as darts on a dart board in front of the engine ((e)ng1). To make it a bit more difficult he's throwing mandarins (口) into the air as well and skewers them up right in the center (中 is a mandarin skewered on a dinosaur bone) in mid flight with the dinosaur bones. He's still able to consistently hit the center (中) of the dart board.

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.

邮 = 由 + 阝 : Maud Younger (y) received a postcard (邮) in the outhouse's kitchen (ou2). The postcard is from the imperator (阝) and shows himself enjoying a cuba libre (由). On the postcard he invites Maud to visit him in his holiday lodge.

政 = 攵 + 正 : As James II of England (zh) became a powerful politician (政) he used his power for many crazy laws. For example, he once ordered a stick figure (正) to tear down the engine's bathroom ((e)ng4) using a sledgehammer (攵).