The Bottle Catamaran is a green science project toy for kids (and kids at heart). Recycle a pair of plastic soda bottles into a working fan-powered catamaran boat powered by 2 AAA batteries. The kit includes everything you need except the bottles and batteries. It will demonstrate some basic physics properties while you have a lot of fun with your boat. Cool.
Intex Excursion 5, 5-Person Inflatable Boat Set with Aluminum Oars and High Output Air Pump (Latest Model)