I made them with merino wool 19 microns (80%) and silk (20%), using the technique wet felting.
With a safe pin on the back you can easily attach it to your coats, cardigans, dress, scarf, bags, hats, or where your imagination chooses.
When I buy wool and other fibers to create my pieces, I make sure the seller provides sound information as to how the wool is collected, and choose what I need from live animals exclusively in countries where people are passionate and respectful in their treatment of these living creatures. Only then am I excited about producing my works of art in loving and creative ways. God bless us and all living things!