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.
卡
=
上
+
卜
:
Protesting against capitalism in the ashram (a3), Karl Marx (k) attaches everyone's credit cards (卡) to balloons (上) to send them up (上) and away. He uses a voodoo staff (卜) to summon winds to carry the balloons away.