中簽

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.

签 = ⺮ + 佥 : The Queen of Hearts (qi) and General Fu Qian (佥) reached an agreement in front of the anthill (an1). To finalize it they sign (签) their names in the sand using a bamboo stick (⺮).