According to 8th Wall, "The Coca-Cola Halloween Collection" is a phygital experience that  transforms actual vending machines around the campus into virtual treat  dispensers. 

This web-based experience let students fill their  trick-or-treaters bags with digital and physical items found in select  vending machines including AR masks, NFTs, apparel, concert tickets and  more."

More here on 8th Wall. 

Photo by Daniel Lincoln