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.
埂
=
土
+
更
:
A snake who ate an elephant (更) found Guy Fawkes (g) hideout in the engine ((e)ng3). To catch her Guy Fawkes quickly piles up earth (土) to create a strip of high ground (埂) around the snake which it cannot pass because it just ate an elephant.