土
=
十
+
一
:
Tommy Turtle (tu) wants to fix a cross (十) on a flute (一) in the space station's living room (Ø3). He uses dust and clay (土) to hold them together.
Willy Walrus (w) built a winding machine (宛) to wind up sleeping bags (夗) in the anthill (an3). For his invention he got a honorary PhD degree and a graduation cap (宀), but as the winding machine winds up the sleeping bags his graduation cap gets in and ruins it.