正
=
一
+
止
:
Mnemonic symbol: a stick-figure with straight lines. James II of England (zh) really has to use the engine's bathroom ((e)ng4), but there's a stick-figure (正) blocking the stalls with a barrier (止). The stick-figure measures with a flute (一) whether James is tall enough to go. James stands very straight (正) to make himself as tall as possible.
轨
=
车
+
九
:
Gitta Giraffe (gu) is riding a roller coaster inside of the Eiffel Tower (ei3). The roller coaster has a red cabriolet (车) follow a figure-nine (九) track (轨). Additionally, the red cabriolet does not emit normal smoke but cloud nines (九).