For a black lives matter rally, we made these buttons with our button machine. A friend designed the files for easy printing from a color or black and white printer. With a bit of elbow grease, you can make a dozen of these in less than an hour.
Print out the attached file on 8.5x11" paper. Cut around the circles leaving about 1/4" of space. Place into the button maker and complete according to the instructions for that specific brand.