Wine charms are out. Chalkboard is in.
Foam paint brush
Start off by cleaning and drying your glassware.
With masking tape, tape around the stem above the bottom of the glass.
Paint an even thin layer of chalkboard and paint and allow an hour to dry. Continue process until you have an even, layered coat of paint. Allow to dry for 12 hours.
Project complete! At your next party, be sure to have chalk on hand for your guests to use to label their glasses.