I found the info on the Passholder area of Disney's site:
Passholders! Find Out How You Can Get a Commemorative Port Wine Glass
The
2015 Epcot International Food and Wine Festival is coming soon, from September 25 to November 16, 2015! Visit the festival on 3 or more separate days, and you can receive a special Passholder gift—a commemorative port wine glass—while supplies last!
How to Get Your Commemorative Port Wine Glass
- On your first visit to the Epcot International Food & Wine Festival, pick up your Festival Passport from any of the locations listed in your Guide Map. Be sure to have your valid Pass and valid photo ID with you.
- Stop by Innoventions East in Future World at Epcot each day that you visit the Food & Wine Festival—from 11:00 AM to 7:00 PM—to receive a special stamp in your Festival Passport.* Be sure to have your valid Pass and photo ID with you.
- On your third day at the festival, return to Innoventions East with your completed, twice-stamped Festival Passport to receive your commemorative port wine glass**—while supplies last!
*One stamp per visit per Passholder.
**One commemorative port wine glass per Passholder per validated third visit. Port wine glass supplies are limited.
Separate admission to Epcot® International Food & Wine Festival required. Valid Pass required for stamp and commemorative port wine glass redemption.