Methods of making guitar pick holders from flexible magnetic materials are described. In one illustrative example, a magnetic side of a flexible magnetic sheet is laminated with a vinyl sheet which provides a coloring and/or design. The side opposite this magnetic side is laminated with a static cling vinyl sheet, after text is reverse-printed on its non-static cling side. Coloring, design, and/or text may also be printed on the vinyl sheet. The laminated flexible magnetic sheet is then die cut to simultaneously form a plurality of guitar pick holders of a predetermined shape. Other methods are described, including methods of individually making custom guitar pick holders.