pillow / to pillow / to rest one's head on (Taiwan pr. [zhen4] for this sense)
枕
=
冘
+
木
:
James II of England (zh) got a new treadmill (冘) for Christmas and he set it up right in front of the Christmas tree (木) in the encampment's living room ((e)n3). When he falls off the treadmill for the first time he falls right into the Christmas tree, which is quite painful and teaches him a lesson. From now on, he'll strap a pillow (枕) to his back.
Maud Younger (y) and Sun Wukong (儿) are exercising together in the encampment's kitchen ((e)n2). They are running on treadmills (冘) and using cooking tops (冖) to fan themselves some air.
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).