I have a set of the 50" Corinthian Bells by Wind River, and like any windchime, when it gets blowing out it can get loud. 
But I didn't want to have to put them up and take them down with the changes in wind & weather. 
So I drew this up and tested it out, and it seems to hold up really well, plus it keeps things quiet when I need them to be. Super handy to use. Hope you like it!

Each tube is approx. 38mm in diameter. The 256mm print plate doesn't have room to hold the tubes at their full distance from each other but it doesn't seem to matter. Should scale to other styles/sizes of chime if need be. Printed with 15% sparse infill and felt just slightly flimsy, so adjusted to 20% and it feels a bit better.