名
=
口
+
夕
:
Mnemonic symbol: a name badge (from 名牌).
Marilyn Monroe (mi) prepared a mandarin (口) for her bat (夕) in the engine's kitchen ((e)ng2) and put her little darling's name badge (名) in front of it.
讳
=
讠
+
韦
:
For Helga Horse (hu) soft leather gloves (韦) are a big taboo (讳), so she sets up an advertising column (讠) in the Eiffel Tower's bathroom (ei4) with an image of crossed-out leather gloves to tell everyone that they should not talk about it.