文在寅

文 = 乂 + 亠 : Mnemonic symbol: a thick book.

Willy Walrus (w) wants to cook in the encampment's kitchen ((e)n2). The recipe book (文) is extremely greasy and Willy doesn't want it to touch anything, nor touch it. That's why he puts it into a beret (亠) so that it doesn't touch the floor, and uses pliers (乂) to turn the pages.

在 = 一 + 亻 + 土 : Zorro (z) and Rosa Luxemburg (亻) exist (在) in the airplane's bathroom (ai4). Rosa is in the middle of balancing a flute (一) on her head and on a pile of clay (土). Zorro uses his rapier to inscribe "Z" into the flute, so as to mark that the pronunciation of "在" begins with "z".

寅 = 一 + 八 + 宀 + 由 : Mnemonic symbol: a plush tiger.

Maud Younger (y) and her plush tiger (寅) just graduated. Wearing their graduation hats (宀) they come out of the encampment's kitchen ((e)n2) where they had to study for years and celebrate their new freedom by drinking cuba libres (由). They also are overjoyed that finally they can spend their time just having fun: the plush tiger uses a flute (一) as a bat to shoot an eightball (八) into Maud's direction, who catches it using her graduation cap as baseball glove.