I would like to make a couple of these spool holders for storing spools of fly tying thread. The spools are held in place by the clear plastic cylinder as the inner spindle is rotated. The cylinder is approximately 4" diameter. I could adjust the size a little larger or smaller if needed. I have tried to bend thin plexiglass into the cylinder shape but it breaks. The cylindar needs to be rigid enough to hold its shape but flexible enough to bend. Or I need to start with a cylinder shape to begin with.
Any suggestions as to the material or a source for a clear plastic cylinder. I thought about using 4" pvc pipe but clear would really be better.