This three-chapter piece is for an interesting set of flutes, even though only three players are needed. You'll need a contra flute, a bass flute, an alto flute, a piccolo flute, and three normal C flutes.
I: Cocoon (alto flute + bass flute + contra flute)
II: Kaleidoscope (piccolo flute + alto flute + bass flute)
III: Flutter (three normal C flutes)