This is the 21st Century and we don't have Jetsons flying cars nor Back to the Future hoverboards yet, but we're getting closer with the Hoverjet GT Personal Hovercraft. This two seater hovercraft glides on a cushion of air over land and sea at speeds up to 60 MPH. Even better is that it can float in water since it is fully lined with U.S. Coast Guard-approved flotation foam. Check out the cool video below of this thing in action. It looks like a real blast to ride around in, if I had the $13,999.95 asking price!