Home / Education / Baby oil wins for oil pastel on plasticEducation school supplies back-to-school school-suppliesBaby oil wins for oil pastel on plasticBaby oil is the best way to get oil pastel off a plastic ruler. Just rub a bit onto the marks with a soft cloth or your finger, and the pastel will soften and Search Amazon As an Amazon Associate, Work Notes may earn.Related NotesExploreExploreExplorePrevious Baby powder is the secret to storing pool floatsNext Babies under 6 months need shade, not sunscreen.