Well I would say all of them for 5.00 at the most together. They really are not that old at all. The whale is #1645. The Hermit crab is #859. The sandcastle goes with Turtle #8 another set and is just an accessory. I am not certain really how much value that holds without its turtle and mib. Sometimes people get lucky at get like 3.00 per pet, but usually only pay 1.00 per pet. If these are rare, which I don't think they are, maybe more. I don't consider myself an expert. To me when these are loose they just don't have the value they do in their boxes and even some of those don't carry a huge value unless they were more sought after sets.