塚中枯骨

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.

枯 = 古 + 木 : Karl Koala (ku) is exploring a cloister (古) which appeared in front of the space station (Ø1). In the cloister he finds a Christmas tree (木), but it is stone old (古) and already extremely dried up (枯).

骨 = 冎 + 月 : Gitta Giraffe (gu) is performing some dark rites in the space station (Ø3). She 3D printed a whole skeleton (骨) including skull (冎) and is trying to make it come alive under a full moon (月), citing from the Necronomicon.