It’s not an alcoholic beverage.
It’s not a cigarette (or other tobacco product).
It may be enjoyed by adults and children.
Update, 9:32 p.m.: Questions are now piling up in the comments, so I’ll wait until tomorrow to reveal the ad. Ask away, if you dare!
Update: October 26, 12:18 p.m.: The mystery product is liverwurst, and it’s Gunther of Lexikaliker for the win. He guessed “sausage.” Thanks to everyone for playing.
[“A couple three”: that’s an Illinoism.]