Pompeian commercial and industrial shrines are often cursorily lumped into the monolithic category of lararia, obfuscating their complexity. The shrines’ diverse combinations of deities, playful iconographies, and spatial placements suggest complex and dynamic strategies of appropriation and bricolage. Contextualized reassessment of assemblages and features reveals remnants of creative, “vernacular” ritual action. I argue that Pompeii’s pistrina proprietors prioritized familiar, locally invested deities alongside or even instead of the Lares to create a more personal, accessible space in their commercial ventures for reciprocal interaction with the divine – most notably, a variation of Vesta and her donkey. Spatial choices also indicate preferential construction of shrines in spaces that were particularly risky, with many closely associated with the mouth of the oven. But shrines were just one tool in a wider protective arsenal deployed around the volatile oven, which included amuletic and apotropaic interventions.