Using a paring knife, carefully cut ¼" slices from the wine cork. Try to keep them as uniform as possible. Rub each slice on the sandpaper to even them out if needed.

Stamp the design onto the cork slices.

Drill a small hole on the top of the cork slices and thread the large jump rings through.

Thread the earring wire hoops through the jump rings and wrap around the base of a wine glass.