PVC or metal small piping (Gloucester Glen)

Looking for pvc or metal piping of the type used to make these modular greenhouses (picture for clarity). If you have any metal piping of this thickness lying around, like from a broken steel chair or anything else that you’re trying to get rid of, let me know.

I’m trying to build a few things with it such as mannequins for my Hallowe’en display, a cover for my fog machine, or maybe even a cheap greenhouse for my compost bin. I have the fittings; I just need the pipe.
Can you help with this request?
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