You may be able to find clear plastic rods that are the same (or slightly, slightly smaller) diameter as the hole, and as above, make your own stand using a clear plastic disc for a base. Model supply stores should carry plastic rod in all kinds of diameters. I have some clear rods that I bought a few years ago to make custom lightsabers for Star Wars figures. (I also use the rods for "plastic welding," but that's another story, lol)