Check this out. Those made out of Swisspear and comes in many sizes in a bag of 10. I took the image from the store and hope Egor from @craftysailor don't mind. They are true to scale and can be stained (if needed). They made by the Russian company Falconet.
Wooden Belaying Pins (10pcs)
Belaying pins for wooden model sail ships. Machined from pearwood. 10 pieces.
craftysailor.com