沿
=
氵
+
几
+
口
:
Maud Younger (y) hides a huge mandarin (口) under a table (几) in the anthill's kitchen (an2). She doesn't want anyone to touch it, so she marks the border (沿) of the forbidden zone using water bottles (氵).
氵
=
⺀
+
㇀
:
Mnemonic symbol: a bottle of water. Sheldon Shrimp (shu) enjoys a bottle of water (氵) in the Eiffel Tower's living room (ei3). The got the water by scratching (㇀) a blossom (⺀) and catching the leaking dew in a bottle.