For stemmed glasses, charms or tags give each guest a different visual marker. For stemless glasses, washable Wine Glass Writers or temporary glass markers can be easier because they attach or write directly on the bowl.

Most charms designed to loop around a stem can be used with stemmed Champagne flutes as long as there is enough room around the stem and foot. Glass charms aren’t appropriate for flutes that don’t have stems.

Washable Wine Glass Writers are a practical option because guests can write directly on the glass. Temporary stickers or other markers designed for smooth glass surfaces can also work when there is no stem for a traditional charm.

Many wine glass charms and tags are reusable and can be stored for future gatherings. Care instructions vary by material, so wipe or hand wash them as appropriate before putting them away.