I am trying to find some type of sturdy yet bendable tubing in some kind of metal that I can shape into this type of fence in the photos below. I am trying to protect a sidewalk garden in front of our home by discouraging people from walking onto my flower beds. I'd like something at least an inch or more thick and I plan on priming it and painting it white so that it matches the color of the house but more importantly, so that it can be seen at night time so people don't trip over it.
Here are images I've seen online. But to buy something like this already made would be costly. Plus I try to make as much as I can by hand because I take pride in being crafty. So I'm hoping that there is something I can cut and bend to the shape I want and place them in the ground. I want the sides of the hoops to be no more than 12-16" wide, give or take. I like the aspect ratio the most in this first photo below.
Here is a pic of my sidewalk garden. I am putting taller stanchions along the sides and back (toward the curb) but want to do this smaller "hoop" design in the front and along the two pathways I created that are in the middle. You can't see them because the plants are too tall. But this hoop idea is pretty much my only option because our home is on a hill. You can sort of tell by the photos I took below. Take notice of the vertical stair railing in the bottom photo to get more perspective on the slope of the sidewalk. So placing something like this individually to allow for the elevation to one side would be ideal. I won't do longer garden fence panels because then the vertical portion would look crooked. I see some people do this in gardens that are on hills and I don't like that look at all.
Suggestions would be greatly appreciated, thanks!
Here's a video of my garden, by the way to help give better perspective: