同
=
冂
+
𠮛
:
Tommy Turtle (tu) is stapling (冂) a magical scroll (𠮛) to the wall of the engine's kitchen ((e)ng2). On it he wrote that he's looking for two twins (mnemonic symbol for 同).
窗
=
囱
+
穴
:
Chantal Chicken (chu) finds that there is a new chimney (囱) in front if the anglepod (ang1). The chimney surprisingly has a window (窗), and as Chantal opens it she finds that there are cave paintings (穴) in the chimney.