殿
=
𡱒
+
殳
:
Dorothy Gale (di) decided to set up her palace hall (殿), the Hall of Supreme Harmony (太和殿), in the anthill's bathroom (an4). She hired a ghost and a communist (𡱒) to serve as her guards and has them wield halberds (殳).
宇
=
于
+
宀
:
Yu the Great (yu) just earned her PhD in the space station (Ø3) and is proudly putting on her graduation cap (宀). She was measuring cosmic (宇) rays by investigating the traces they left in a honey jar (于) and is demonstrating her experiment for the camera.