自便

自 = 丶 + 目 : Mnemonic symbol: a hand mirror, which someone uses to look at themselves.

The Eye of Providence (目) is looking at itself (自) in a handheld mirror (自) in the space station's bathroom (Ø4). It think it's indeed looking very good, since Zorro (z) attached a petal (丶) to its eye (目).

便 = 亻 + 更 : "Handy" is a German word for "mobile phone", so that's what I will represent this character with.

便 = 亻 + 更 : Brunhilde lost her mobile phone! When Rosa Luxemburg helps her to find it by calling Brunhilde's phone, they discover that it must be inside the snake that ate an elephant which is lying in the anthill's bathroom. Together they open the snake's mouth to see wether they can find it.