whimsy|whimsies

他突发奇想，提出了一个关于会飞的鱼的有趣点子。

He came up with a ___whimsy about fish that could fly.

她在等公交时脑子里充满了各种有趣的胡思乱想。

Her mind was filled with playful ___whimsies while waiting for the bus.

她的画作充满了奇思妙想，有会跳舞的云朵和穿西装的兔子。

Her paintings are full of ___whimsy, featuring dancing clouds and rabbits in suits.