You might remember the meaning of the character 呢 with this easy mnemonic:
Mummies are made by wrapping the corpse (尸) in this woolen material, covering even the mouth (口) and eyes! Sometimes they would be buried with family heirloom like a silver spoon (匕) or a sword.
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.