Plastic electrical conduit.
It is 10 feet long and has a flare at one end that makes it a connector. (Also - I want this sweet pvc cutter
Best luck with 2 pieces of 3/4"
3 pieces did not stay together but could be glued with PVC cement (the 2 part stuff that smells terrible)
A regular size hoop can be made with a 1/2" piece.
The conduit costs a dollar or two per piece. It is extremely rugged stuff.