skothing ...uh you may love your dog but if you sell or give those pin cushions away you may inadvertently cause someone allergy problems. Walnuts are another allergen. I've just had sinus surgery due to allergies so I speak 1st hand.
When I was young I read that in the bottom of Indian pouches they kept human hair to keep their pins sharp and rust free. I am a hairstylist now and people always ask me to save hair for different things in the spring it will be for gardens.