Aliaksei Zholner (previously) is known for making fully functioning models from cardboard and paper. His latest piece is a miniature 18-key piano that is tuned to play current and classical pieces such as Fryderyk Chopin’s Polonez b-moll,Ludwig van Beethoven’s Für Elise, and Scott Joplin’s The Entertainer. The “strings” of the piano are created from paper strips connected to a tension mechanism similar to a guitar and struck by hammers made from paper and cardboard. More
Source: thisiscolossal.com