When I was growing up we were inundated with black walnut trees. Having lived in a fairly rural area that had some less than ideal roadways, we used to take a bucket or more of these (covered with their green skin) and fill all the potholes in our roadways.
By golly, they cured some of the bumpin' problems.
"As a girl I had zero interest in the stove." - Julia Child
This is real inspiration. Look what Julia became!