You can get an air swimmer for only $19.99 from http://www.lightake.com And it even comes with free shipping. It actually swims through the air using a tail that controls forward motion and turns. And it uses a pod on the bottom that moves forward and backwards on a track to point the fish up or down so you can change altitude. You can even make it fly backwards with practice. You can get it filed with helium at almost any grocery store or party supply store and it's easy to put together. It flies for 30 minutes and charges on the transmitter in 15 or 20. It's beautiful and surreal and a lot of fun to fly even in small rooms.