Hi IMR, my husband is thinking of buying one for his second or third grade classroom. ( he's put in another teaching application...LOL. funny after all the years he said he was tired of "jumping through the hoops". From what I saw, they just started selling them this past JUly, 2011, and If my brain is correct, they are $40.00 and operate on four batteries,one in the fish or shark and three in the remote. They could be lots of fun and I think the batteries run for about four hours on one charge. I can find out if they ship worldwide but I am sure they do.
Come to think of it, why not just have them "fly "swim it there to you!" LOL

after all that is what they do. Can you imagine, I just had this visualization, picture yourself high up in a private plane or such, and you have been drinking a drink or more and suddenly as you gaze out the window, there is a SHARK or a Clown fish, You look again, rub your eyes and it is gone, You tell your wife, freind or whomever is sitting next to you. They look and of course there is nothing there,

They then suggest, "perhaps you have had enough to drink, or why not take it easy, see your Psych when you get off the plane if you are still seeing " flying sharks or flying Fish". LOL, lot of fun and pranks I can think of. Oh and of course there are tons of other things you can do with them ,educational as well as just plain fun!
RWM