I had a bit of cardboard left over and remember a fellow blogger cutting out shapes and making a slit in them so they can be. Used for construction model.
They didn't take long to do. I made various shapes. I think a triangle was the best.
It was a little tricky at first .
He got his tools to pretend to cut them like bob the builder.
I encouraged him to colour them in with crayons but I think paint would be better. Probably paint them in advance or as a 3D model.
Definitely will try again. Next time I will also cut a bigger slit to make it easier.