Checked in to the Kimpton Nine Zero in Boston today. Mentioned the secret phrase and the agent went in to the back and brought out this metal rack with three jars filled with stones. Each jar had two metal sticks in them (six sticks total). I was told to pick one of the sticks. I pulled one out and mine said "Free Bottle of Wine". Was offered white or red. It is the same wine they serve at the wine reception, but still a fun way to welcome guests. Not sure what the other prizes were.