They designed an inexpensive and modern design using flat white Coroplast squares.
They cut 4×8 sheets of flat white Coroplast into 24″x24″ squares. Sheets of Coroplast were purchased locally from a plastic sign company for $17 a sheet. They did pay them extra to cut them into 24″x24″ squares.
They strung fishing line down the open veins in the Coroplast and tied them together creating a row of squares. They attached the squares to the top of ceiling using conduit pipe.
A square grid could be layered and assembled a ton of different ways, creating depth and length visually.
Add color LEDs or gelled pars and you end up with a creative and modern design.