/diy/ - Do It Yourself

tldr does anyone know how to make the kind of stiff, flexible but nonplastic wire hoops used in pop-up laundry hampers and those cloth tunnels children play in
My last minute halloween costume this year is "comically large pumpkin". it is a 4' diameter pumpkin with a design similar to pic or a crinoline. My question is how to construct the hoops so they are like those in the products I mentioned above.
It seems they are pre-tensioned, but all wire is sold in loops of less than 4'Ø. could be wrong tho.
I could make the hoops from flexible pipe, but this is heavier and involves more calculations due to pipe thickness.
ill post progress in this thread