墙纸

• 土(earth; soil; land)RADICAL
• 啬(stingy; frugal)PHONETIC

A wall built from earth stands as solid as a stingy person who refuses to give up even a single brick.

• 糹(thread; silk fiber)RADICAL
• 氏(family; clan)PHONETIC

Paper is made from silk fibers, and the sound hint follows the character 氏.