[jwl868]

Carpet is often sold on large diameter heavy cardboard tubes. A carpet store may give those away.

We've painted them red, then used wide white tape to make the stripe.

I can't help much with the curved part. I once considered trying to heat and bend a larger diameter PVC pipe, but never tried it. I was concerned that the pipe would kink even with the heat. I think one can fill the pipe with sand so that the shape is held during the bend, but I never tried bend pipe over 1-inch in diameter. (Heating the pipe can be dangerous - flame, noxious gases, hot materials - don't try it indoors.)



Joe