The Thirst Zapper is a retro-futuristic water gun with a design reminiscent of 1950s sci-fi, featuring a bulbous, rounded body with smooth, curved surfaces and a prominent trigger mechanism. Its primary color is a vibrant red with white and blue accents, giving it a playful yet slightly worn appearance to fit the post-apocalyptic setting. The nozzle is sleek and metallic, contrasting with the plastic body, and features subtle weathering effects like scratches and dirt to indicate its age and use.