舰
=
舟
+
见
:
Joan of Arc (ji) found a very old yellow submarine (舟) in the anthill's bathroom (an4). She is able to retrieve an old surveillance camera (见) from it and can see on the videotape how the submarine was totaled by a warship (舰) during the last war.
只
=
八
+
口
:
Mnemonic symbol: this character looks like something (a head?) on two legs. I'll just represent it by a cuttlefish (只). James II of England (zh) has been in the space station (Ø3) as the only (只) one for too long and went mad. He thinks he's holding a mandarin (口), but he's just about to bite into merely (只) an eight ball (八). On the top of his head is a cuttlefish (只) he mistook for a hat.