I found a good use for 1” PVC and pool noodles

Looks great!

Now it needs a paint job. Black? Navy blue? Yellow?

If if I had a tank, I’d copy your idea. Way to come up with a solution.

I've used pool noodles to line the edge of my shooting benches where my chest rests against it, makes a big difference.

Great idea! Years ago a high pressure "air" tank fell over in the shop where I was working and the fall broke off the regulator. That pressurized tank slid across the concrete floor and had enough momentum to go through a framed wall on the other side of the room. Perhaps your small tank wouldn't be as dramatic if it "lost it's head" but would be scary anyway!

I took a pool noodle and cut it into two pieces a couple inches longer than my tank. Then drilled two holes in each cut piece about 12 to 14 inches apart from the center. Ran some nylon rope through the holes and made a loop big enough that my tank could rest on the noodles without touching the floor, table or bench. At the desired length I cut the rope and braided the ends. My tank will ride in the truck, sit on a platform, table bench etc and I do not worry about it rolling over or around.