The fabrication of anatomically and bio-mechanically correct testing platforms (commonly referred to as "Phantoms") are advantageous tools towards the development of medical devices. Current phantoms use materials that are unable to replicate all the properties of biological tissue and as such, validation of medical technology often requires practical simulation in animals. The Human Heart Phantom for Catheter Navigation Assessment emulates the in-vivo environment and bio-mechanical properties of the human cardiovascular system using polyvinyl alcohol (PVA) hydrogels. Methodologies to create PVA hydrogels such that they uptake the hyperelastic and frictional properties of cardiovascular tissue currently exist. An overview of the methodologies developed to transform and shape PVA into anatomically correct cardiovascular geometry will be presented. Molding and positioning methodologies utilizing deconstructed 3D models of a human heart incorporated with the existing methods for the creation of PVA hydrogels allowed for creation of the phantom. The amalgamation of these methodologies enabled a realistically frictional, and phenomologically hyperelastic testing platform capable of assessing the navigational capabilities of cardiovascular medical technology