Got this recipe via Instructables to make a batch of play dough for the little Piggie. I only made a half batch as a trial run. I used a couple drops of The Body Shop's diffuser oil to give it a nice pretty smell. It was what I had on hand. I guess if ingested, it will have little impact since it's so diluted. Anyway, I made mine in pastels...she didn't care to go too vibrant in colors.