腓

féi = f + ei2

calf of leg / decay / protect

腓 character breakdown

腓
- 月
  - 二
    - 一
  - ⺆
    - 丿
    - ㇆
      - 一
      - 亅
- 非
  - 三
    - 一
    - 二
      - 一
  - 丨
  - 丿

yuè = yu + e4

moon / month / monthly / CL:個|个[ge4],輪|轮[lun2]

月 = ⺆ + 二 : Yu the Great (yu) is modelling a moon (月) in the elevator's bathroom (e4). He uses a stapler (⺆) to staple a lot of capacitors (二) together to form a moon shape, while the real moon is sitting for him.

非

fe̅i = f + ei1

abbr. for 非洲[Fei1 zhou1], Africa

非

fe̅i = f + ei1

to not be; not / wrong; incorrect / non-; un-; in-; de- / to reproach; to blame / (coll.) to insist on; simply must

非 = 三 + 丿 + 丨 : Mnemonic symbol: a negative film (photography).

Frankenstein's monster (f) made an effort to photograph the Eiffel Tower (ei1), but now his negative (非) is a big mess. In front of the tower he set up a camera on a Cartesian coordinate system (三) as a tripod, and he attached a banana (丿) and a dinosaur bone (丨) to the camera so that he can finely tune the angles. All was for naught as he now holds the messed up negative in his hands.