Button Bonanza Grab Bags from Buttons Galore & More. Each Button Bonanza Grab Bag contains 1/2 pound of buttons in assorted sizes and shades. The buttons range in size from 3/8 inch to 1 inch and feature two and four hole types. The Button Bonanza Grab Bags contain approximately 300 buttons per bag! Add these little embellishments to apparel, quilts, bags, and more.