This was a 1 week long project in my 2nd year at University. We were in teams of 3-4 and each team was given a sheet material, ours was stainless steel.
The solution was simple; a waterjet cut NET which could be folded/assembled on site by the users or by assemblers that are provided. Simply held together with 4 rivets, inside the leg of the chair.
A laser cut model of our design before sending it off to be manufactured