tree / wood / coffin / wooden / simple / numb / one of the eight categories of ancient musical instruments 八音[ba1 yin1]
木
=
八
+
十
:
Mnemonic symbol: a Christmas tree. Malte Monkey is putting up a Christmas tree (木) in the bathroom of the space station (Ø4). He's using a cross (十) as a base to put the tree on, and decorates the tree with eight-balls (八).
皆
=
比
+
白
:
Joan of Arc (ji) wants to be known by everyone (皆). To make sure to reach her goal she wears a bikini (比) in front of the elevator (e1) and inspects herself in a hand mirror (白).