How could you omit the original?......https://hst.com.sg/index.php?route=product/search&search=Buttons
https://www.ascuteasabutton.com/category/blazer.html
https://www.britexfabrics.com/buttons/blazer-buttons.html
https://bensonandclegg.com/collections/blazer-buttons
https://bennosbuttons.com/organic/Horn-Buttons
Coat front buttons and smaller sleeve buttons are usually clearly specified. The best materials are horn for suits, and horn, metal such as brass or pewter for sport jackets, woven leather, mother of pearl and smoked mother of pearl, each of which offers a different effect.