电磁

电 = 乚 + 曰 : Dorothy Gale (di) is looking for a wall plug for her charger (mnemonic symbol for 电) in the anthill's bathroom (an4). She's digging up the whole place with a shovel (乚), but instead of a wall plug she finds a microphone (曰).

磁 = 兹 + 石 : The King of Chu (c) broke open a mysterious, previously sealed rock (石) made of porcelain (磁) just inside the space station's entrance (Ø2). The rock contained a magnet (磁) which as soon as the King of Chu picked up was so powerful as to attract a Nimitz class aircraft carrier (兹), crashing the hull of the space station.