All you need is:
::: a length of wool or string
::: tempera paint in a plate or shallow dish
We attached the string to a peg to make it easier for the children to hold without getting too covered in paint.
I think the effect with black paint on white paper is quite striking.
But using different colours works beautifully too, and adds another element to the experimentation.
If you enjoyed this, you might also enjoy super sized string painting.