Super simple. All you need are some nails, some wood (we used scraps that I had painted forever ago) and some sort of string. We used embroidery floss, but yarn or even thread I think would work for this.
Place a piece of paper over your wood. Draw the desired shape
(or use your computer and printer if you want a more precise shape)
Hammer in some nails along the lines your drew
Pick a nail to start with, tie your string to the nail, then loop randomly (or in a pattern).
I had Emma go around each nail in a complete circle before moving on to then next nail.
Enjoy your masterpieces!
We hope the winter is treating everyone well!