膣

月 = ⺆ + 二 : Yu the Great (yu) is modelling a moon (月) in the elevator's bathroom (e4). He uses a stapler (⺆) to staple a lot of capacitors (二) together to form a moon shape, while the real moon is sitting for him.

窒 = 穴 + 至 : James II of England (zh) has been waiting for his baggage to arrive on the conveyor belt (至) in the space station's bathroom (Ø4) for ages. He's got a hunch that the conveyor is obstructed (窒) because it's so old that it has cave paintings (穴) on it.