Pack-3 Bernie Sanders Enough is Enough Pinback Buttons Pack-3 Bernie Sanders Enough is Enough Pinback Buttons Mylar Covered Metal buttons 2.25 inches pin-back, laser printed and polished by hand before being placed in cellophane bag for protection Campaign buttons, stickers and pins have been a significant part of the American political landscape since the beginning. Both George Washington and Abraham Lincoln wore them. During the 1890s mass produced campaign buttons became available. They were designed to contain a picture or campaign slogan like those made today. Now political buttons, stickers and pins are used for candidates, fundraising and cause promoting and collected as historical memorabilia.