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.
续
=
卖
+
纟
:
Xu Xian (xu) and the silk worm (纟) are running a flea market (卖) In the space station's bathroom (Ø4) to replenish (续) their cash box. To keep it running continuously (续) they are standing behind their table in turns (续).