The Jumping Balloon

Where can I get one of these?

From Modern Mechanix:

HOW would you like to own your own hand-power jitney balloon — to spend your Saturday afternoons joy-riding in the sky, up a thousand feet or so, swinging beneath the round belly of a small gas-filled bag and traveling anywhere you can induce the playful breezes to take you? You sit in a suspender-like harness slung from ropes. In your hands you grasp a stout pulley rope. You give a strenuous tug on the rope—just like pulling an old fashioned elevator cable. A small horizontal propeller whirs just above your head —and up you go, jumping into the sky 100 feet at a jump!

I don't know about you, but this seems way better than para-gliding.