This project is super easy and in-expensive. All you need is a plastic milk/juice bottle, scissors, wool, a large needle and something pointy to make holes.(Definitely a job for a grown up!)
I made holes with a needle first and then enlarged them with a kilt pin, a bradle would be perfect. They need to be big enough that your needle can easily pass through.
Then use the wool to sew around the edge how-ever you like.
We decided to make holes for a star decoration on the side and some wool across the top for a handle! Fun and easy for a rainy day -useful too!