I had a stack of blank CDs stored on this spindle. There was also a plastic cover, but it's unfortunately gone to the landfill, as I couldn't figure out another use for it.
But the spindle that held the blank CDs was quite nice, and the little plastic top that held the whole thing together screwed on nicely.
Obviously this won't work with just any spindle without some ingenuity. Hopefully whatever you have lying around can be made to work.