Here I am with my newest acquisition, a PVC sewer drain pipe from Home Depot, 6" in diameter and two feet long. We were at the hardware store getting a package of rivets for John when I noticed this, precut and ready to use for storing sponge bars and combs, that is my combs that don't have holes in them. Most of my combs are hanging from Command hooks that can simply be fastened to the wall with their little peel-and-stick tapes.
This has enough size and weight to it that I think it'll work just great and my sponge bar pile will stop falling over.
It would be cheaper to purchase a long length of the stuff, cut it and split it with your friends, but getting the cuts straight with a hacksaw sounded challenging to me. I like that this isn't much of a project. I didn't find an end cap to fit it, but I don't think that's really necessary.
John is wiping the ink off with acetone. It takes a while, but it does come off. I plan to sand the ends very lightly, just to smooth out the edges where it was cut.