In working on Martha's World, I am aiming to use what I have to hand rather than buying things. I thought we had some large paper clips, but unfortunately I only had a couple, so did have to buy some more, but managed to get a container of them for £1 from Sainsburys so figured that wasn't too much to spend.
Paperclips and tools to hand.
I bent the shorter part of the paperclip up.
I then bent the other long part up to make a triangle.
With some pliers I bent a hook and then clipped a bit off with the wire cutters
A very simple coat hanger that does the job!