查
=
旦
+
木
:
Mnemonic symbol: a detective. In the ashram's kitchen (a2), the detective (查) is investigating (查) a passed out Charlie Chaplin (ch) who's lying under a Christmas tree (木). Could it have something to do with the big empty mug (旦) which was formerly filled with glühwein?
哨
=
口
+
肖
:
The little prince (肖) took a part time job working as a sentry (哨) for Sherlock Holmes (sh). In the aortas's bathroom (ao4) he whistles (哨), thereby giving the secret signal to Sherlock. Sherlock answers by holding up a mandarin (口), which is the secret signal of acknowledgement.