An activity which will allow your children to make their own small mills
Very straight hazelnut or chestnut branch or a piece of reed
My First Opinel
Cut the central axis of the mill, its length depending on its future location.
Using the knife, split the ends of the branch at their centre into two perpendicular slots.
Make the two blades.
Insert the two blades into the slots in the axis.
Make two supports to be planted in the ground.
Plant the two supports into the ground, above the stream.