Home Made "Bouncy" Stool/Chair

Howdy all! Fairly new here, and found this site because I was trying to figure out if there was a fairly inexpensive and safe way to make a home made 'bouncy' sex stool/chair.

THIS is what I'm trying to build: http://bodybouncer.nl

The least expensive I can find them is $140, and I enjoy the DIY challenge anyways.

I'm thinking PVC pipe for the frame, but I'm not sure if I should go with rubber sheeting for the seat, or rubber straps, etc.

Does anyone here have any experience building one of these ? Tried to search the forums but didn't find any previous threads.

Thanks in Advance!

Due to the open design and the stresses involved, PVC might be a bad idea. It could shatter and would not be stiff enough. I think a steel chair frame turned up side down might work. For the seat, maybe heavy stitched layers of spandex material of something stretchy like wet suit material.

Wow - never even THOUGHT of repurposing a steel chair frame! Thanks for the idea - I can usually find them at Salvation Army thift store type places pretty cheap. And either spandex or neoprene might work too. Good thing the wife has a sewing machine!

Thanks again!