A jigger is, fundamentally, a miniature measuring cup that can help you nail the ratios of spirits and mixers. After we analyzed them, our favorite was in fact a miniature measuring cup from OXO. But for a far more regular jigger, you can't conquer this a single from Piña Barware. https://louisdbxrp.bloggazza.com/36376240/the-smart-trick-of-shaker-cabinets-that-nobody-is-discussing