In 1972, my best friend and I built a hang glider out of bamboo and plastic. We held it together with radiator hose clamps, nylon strapping tape, clothes hanger wire, and of course, some rope.
We'd run off of hills and cliffs hanging by our armpits and swing our feet around to try and control the beast.
The white square patch in the sail above my head in this photo is where the "control" situation didn't work out so great. I crashed and my head went through the sail. This is the next flight.
This particular days flying came to an ugly end when I decided it would be a good idea to get a long rope and tow the glider behind a car. My "flight" didn't go so well. The glider ended up in a trash dumpster so we made another one the next day.
Just one of the many and plethora reasons I shouldn't still be around. lol