Anvil
Verdi wrote some famous music called the Anvil Chorus in his opera Il Trovatore. Wagner asked for 18 anvils in Das Rheingold in the scene which takes place below the earth where the Nibelungs are working at their forges. Albert Parlow wrote an Anvil Polka, Varèse used an anvil in Ionisation, Walton uses an anvil in Belshazzar’s Feast and there is an anvil in the orchestra in Howard Shore's music for The Lord of the Rings movie trilogy.