Pérez Córdova's series ‘Objetos en sí mismos’ (Objects Cast into Themselves, 2018–ongoing) features replicas of found items stripped of functionality. This series began with a brass trumpet that the artist bought from a man playing on the street; she melted it down and poured the molten metal into a cast of the trumpet (Spare Change, 2019), unmaking and remaking the instrument. In the same vein, the sculptures Una reja en una reja 1, 2, 3 and 4 (A Fence into a Fence, 2022) comprise fragments of metal fences melted, recast in their own form and embedded with bird-like objects crafted out of feathers and clay, rendered useless through transmutation.