To create model glass. However, shape of surfaces this model is not the same how from the WindDancer.
1 Draw sketch two neighboring curves outgoing from the center and sketch third closing curve.
2 Make a surface from three curves. Obtain a surface of a disk sector.
3 Now you can give a thickness for this sector, and then create array from it. Or you can create a first surface of the disk, and then give a thikness for the disk.