永
=
丶
+
水
:
Yu the Great just got the most romantic proposal ever! In engine, somebody prepared a water fountain and had a diamond ring floating on a petal leaf float over to her. Unfortunately Yu the Great doesn't know who the ring is from, as her lover drowned in the water fountain earlier that day.
永
=
丶
+
水
:
Mnemonic symbol: as the advertisements tell us, diamonds are forever. I'll represent 永 with a diamond ring.
县
=
且
+
厶
:
Marie Curie (xi) and the county manager of her home county are manufacturing maps of her home county (县) inside of the anthill's bathroom (an4). The county has a very special form which you can reproduce by smashing a fake nose (厶) with a shelf (且).