外国资本

外 = 夕 + 卜 : There's a hole in the wall of the airplane's bathroom (ai4), and from outside (外), a bat (夕) wants to enter. Willy Walrus (w) is very afraid of bats, so he does his best to hinder the bat from entering with a voodoo staff (卜).

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.

资 = 次 + 贝 : Zorro (z) has become a real capitalist (资). In front of the space station (Ø1) he locked a crab (贝) into a cube (次). Whenever he throws organic waste into the cube, the crab is so furious that it cuts the carbage to really small pieces and throws it out. Zorro then collects the cut garbage and sells it as organic fertilizer.

本 = 一 + 木 : Beelzebub finds a Christmas tree in the encampment and feels like eating its roots. He uses a flute to chop the roots right off.