Amazon.com : 100 Pk - 2.25 inch Diameter Pin Buttons Sets for Badge Making Metal Parts 2 1/4" (56 mm) : Arts, Crafts & Sewing
Tiny Buttons For Sewing, Doll Making and Crafts (Black) - 3 Packs - 120 Buttons - Walmart.com
VEVOR 2-1/4 in. Red Button Maker Machine 58 mm Badge Maker Machine with 1000-Pieces Button Parts and Circle Cutter 58MM1000KXZJ00001V0 - The Home Depot