I have a couple of these unusual chips at $5 each, which includes shipping to a US address.

"Unusual" in the these are plastic, stickered and in a mold that I am not familiar with. While it is listed on ChipGuide, there is no indication that they were ever used aboard a Princess Cruise Line casino. I have emailed Carnival Cruise Lines (parent organization of Princess Cruises) but have not received a reply.