Split Willow spanner

While out on the reserve the other day I needed to undo a nut and bolt but realised I had left the spanner behind.  It was a long walk back to the workshop so a decided to try and make something out of natural materials.  I cut a piece of Willow about the thickness of my finger

I used a piece of cord to whip both ends of the stick and then split the stick in half (the whipping prevented the split running to the ends of the stick)

I had to prise the two halves apart and put the nut through the gap

I grasped tightly either side and close to the nut.

I was rather sceptical that it would work but I was pleased to find that it did!!  It would not be strong enough to remove a lock nut or rusted nut and bolt.

Unfortunately I did not have my camera with me when I originally made the spanner so I have reconstructed it for the pictures.