flash(a bright patch of color used for decoration or identification: "red flashes adorned the airplane," "a flash sewn on his sleeve indicated the unit he belonged to"); emblem; check mark; designation; distinctive mark
charm(An icon that is attached to an event and that is viewable in someone's calendar. Depending on the calendar view, a charm may appear next to an event title, or may be the only visual representation of an event on a calendar day); icon(A small picture that represents a file, folder, program, or other object or function)
a lapel pin(пластинка, кружок и т. п. с какими-либо изображениями, которые носят на груди a small piece of metal, cloth or plastic, made in a special shape with a picture or words, that is worn on the chest)