Hello, Anh!
While we certainly can research images on how the piano lid is supposed to look, we will still need you to send us a bit of information. Please send us a sketch of the piano lid with all the measurements and dimensions including the thickness of the material.
As for material, we offer a selection of different options for you to choose from. You can select from classic acrylic, plexiglass, polycarbonate, lucite, and museum quality acrylic. All of these materials would be an excellent choice for you custom acrylic piano lid. If you have any questions about any of the materials, we would be more than happy to assist you!
We look forward to working with you!
Thank you!