An activity which will allow your children to make their own small mills

Material 

Very straight hazelnut or chestnut branch or a piece of reed

Tool 

My First Opinel

 

Instructions 

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.

Installation 

Plant the two supports into the ground, above the stream.