Solar Airship.
You don't need gas, pumps, puff or hassle to inflate your Solar Airship.
You should be airborne in about 2 minutes. Simply spread the black film out on a flat surface, tie one end and walk around with the open end until the whole structure fills with air.
All you need is a reasonably sunny day. The Solar Airship is supplied in a small container 8 x 6 inches in size so you can take it with you in the car.
14 years upwards