I'm not going, but if you ever want to make your way down to Paramus I have them by the thousands, although they're pretty well embedded in the nooks and crannies of my rock. I'd be happy to shake some off if there was a good method?
Any time! I've had people come by and we're amazed at many were in the tank. I am the second owner of the tank, so the rock inhabitants were not all my adding.
I think some of the rock came from Florida aqua farms, as there are sponges etc... But you may also end up with some asterinas accidentally as well!