Shit stick
Shit stick means "a thin stake or stick used instead of toilet paper" for anal hygiene and was a historical item of material culture introduced through Chinese Buddhism and Japanese Buddhism. A well-known example is in a watō from the Chan/Zen gōng'àn/kōan, in which a monk asked "what is buddha? " and Master Yunmen/Unmon answered "a dry shit stick" (gānshǐjué/kanshiketsu, 乾屎橛/乾屎橛) .