I ran out of blank CDRs today. 
I have a new stand for my low whistles today! 
Empty 100-disc spindles work well for Bb through low D whistles, but the smaller spindles don’t work quite as well.
Empty 50-disc spindles work well for Bb through low G, but empty 25-disc spindles are only suitable for Bb whistles.
I still prefer my oak stands made from materials purchased at Lowe’s Home Improvement, but using empty CD spindles is a great idea!
Recycle plastics and save the trees! 
Genius!
Brilliant, Eskin!
Great idea, Eskin! Thanks!