I know this sounds crazy but my mom-in-law has stuffed pincushions with human hair. The oils in the hair help keep the pins from rusting. The longer the hair,the less likely it will work out thru the fabric. Any beauty or barber shop can probably save you some.
Also putting some hair around the garden is supposed to help keep critters out of the garden. (You just never know what kind of info you can find on this site. :wink: )
Sis