This creative component of the student’s senior thesis explores the myths of mermaids and water spirits in the Afrolatinx diaspora. It delves into the role of colonialism in the portrayal of these water creatures as monstrous, stemming from the demonization of the ‘other’. By examining the ontological status of mermaids and water spirits, “Monstrous Sirenas” debates the differences and consequences of relating to such creatures as fantastic symbols or ‘real’ entities. As contemporary queer symbols, these hybrid beings may foster a space for resistance, and transcendence, for gender non-conformity. “Monstrous Sirenas” includes a biomaterial installation that, combined with a sonic component brought to life by Emanuel Strauß’s sensitivity, integrates biopolymer (aka bioplastic) pieces that are activated by human touch. By combining materiality and sound, this project reflects upon what it means to be human and whether art can be the means for those boundaries to become tangible.