挣
=
争
+
扌
:
The grim reaper (争) comes to the engine's bathroom ((e)ng4) to take James II of England (zh) with him. James II of England struggles (挣) to get free, but the grim reaper tightly grabs his back with a toy claw (扌).
争
=
⺈
+
肀
:
Mnemonic symbol: The grim reaper, as 争 is often used in words involving war (...战争). In front of the engine ((e)ng1), the grim reaper (争) marks his next victims in passing. With a crayon (肀) he draws big "X"s on the crane (⺈) and James II of England (zh).