From Norweign

Bubbly chips are in the "coin pusher" machines. The "mystery prize" chips are obsolete. I saw one on display in the atrium and asked the casino boss about them. He didn't know what I was talking about and I walked him through the ship to show him.
Absolutely couldn't give it away. No value. Nope....NO.....No way. I begged and pleaded. They were supposed to be destroyed...was the reply. Eventually after a few days....he walked up to me while I was at a table game and handed it to me. 😀