Mr. Men is a British series of children’s books and media franchise written and illustrated by English author Roger Hargreaves which began publication in August 1971.[1] From 1981, an accompanying series of Little Miss books by the same author (but with female characters) was published.
kagis
https://en.wikipedia.org/wiki/Mr._Men
The timeframe is plausible; they were out then.
Oh I figured it out! Sanford mr sketch scented markers