This is the solution I came up with for my particular situation, which included a vertical water pipe and the water faucet.
PVC (polyvinyl chloride) is a thermoplastic. It softens with heat and rigidifies again when it cools. I cut this rectangular piece of PVC from the wall of a larger piece of pipe. After heating and flattening it, I heated the ends and bent them as needed to hold the hose and to clip onto the vertical water pipe.
You can slide the unit up and down the pipe to adjust the height of the hose.
Step 1: MARK LINES FOR CUTTING
I hold the pipe in a door frame and use the frame edge as a guide for drawing the pencil lines for the cuts. This particular strip of pipe is going to be 2 inches wide and about 14 inches long.
Step 2: CUT THE MATERIAL
Step 3: FLATTEN THE MATERIAL
This is an optional step. It is not absolutely necessary to flatten the material for this project. If the pipe section still has the curvature of the pipe running lengthwise, the curvature will give it more rigidity.