I purchased a Splash Tunica $2.50 chip (with pink and peach inserts) that was described as being one of the 10 rarest riverboat chips. This has led me to ask the question - What are the other rare riverboat chips? Also what does rare mean in this instance? How many copies of a rare chip are available(or in collections)? I know that with certain illegal chips anything that has fewer that 100 pieces known is considered moderately rare, fewer than 20 is definetely rare. But casino chips are issued in the thousands and there are more collectors. So here is the question. Which chips do you think are rare Riverboat chips and do you have any idea how many are out there?