中国残联

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.

残 = 戋 + 歹 : The King of Chu (c) invited the wicked witch (歹) to try his floating tank (戋) in the anthill's kitchen (an2) and without waiting he pushed the wicked witch in and closed the lid. After a while he checked on her and found to only the complete tank, but also the wicked witch absolutely ruined (残).

联 = 关 + 耳 : Li Qingzhao (li) invented a machine able to combine (联) her hair into braids, and she is trying it out for the first time in the anthill's kitchen (an2). Just as the machine starts Li Qingzhao realizes it is going to combine both of her ears (耳) into one braid she quickly hits the machine's off button (关).