I came across a tutorial for designing your own pin heads. I had no reason to make some except they were cute and I had shrink plastic. I also happened to have a star punch; however, I was not strong enough to punch through the plastic, so I just dented it where the tips of the stars would be, colored them, and snipped them out with tiny scissors after sticking pins through them. I used every color Sharpie I have.
They are cute and tiny and colorful, but, as they don't lay flat, they are not very practical for actually pinning fabric.