"Кысь" Татьяны Толстой -- кто-нибудь тут читал?
Я читала, правда, очень давно. Замечательная книга.

"Кох-и-нор" (KOH-I-NOOR) is a Czech brand of art and office supplies. It has been extremely popular in Russia/U.S.S.R. for decades. "Koh-I-Noor" pencils and erasers were considered must-have among those who were into graphics of any kind (art school pupils, engineers, etc.). It's still a well-respected brand.

Regarding an elephant reference:


(this particular item even had its own "nickname" - "резинка со слоном").