Blazerfan, Geonap and 2Dolphins are all hard to find? I think OKIC can be added as a hard to find coin. I've also seen a handful of Moun10Bike ver. 1 coins exchanging hands, so maybe they're not as rare as people think? They just have a hefty price tag. The same goes with IndyDiver, I've seen a few traded and at least 2 sold. Aside from the one I got I've only ever seen/heard of 1 other Waypoint 15 being traded, though. I'd wager that a Waypoint 15 is one of the hardest to find, but who knows.