So I work at a childcare center and also recently helped with cutting down a walnut tree. I thought of taking some of the stump pieces and drying them out a bit and then putting them in the three and four year old playgrounds. We have a very natural playground so there are lots of things like this around but I didn’t know if I should be worried about any allergic reactions. These are not infants that will put everything in their mouths and if the oils are pretty well dried out I wasn’t sure if it would be a worry. Any thoughts would be helpful

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