Nothing Sacred Tattoo in downtown San Diego's Gaslamp Quarter has operated a walk-in and appointment-based tattoo and piercing studio on Market Street since 2007. The women-owned shop fields a multi-artist roster covering styles from fine-line script and neo-traditional to blackwork and cover-ups, a breadth of stylistic range that contrasts with the single-artist appointment-only model at Guru Tattoo in Middletown. Dedicated piercing stations handle ear, facial, and body piercings alongside the tattoo floor, making it one of few Gaslamp studios combining both body-art disciplines at a single address. The downtown flagship occupies 311 Market Street between Third and Fourth avenues, placing it within the Convention Center and Petco Park visitor corridor that drives consistent walk-in traffic during Padres season and Comic-Con. The studio's flash-event format — where artists release limited original designs for same-day tattooing — applies the commission-based art model used by Sparks Gallery on Sixth Avenue to the tattoo medium, translating gallery-exhibition urgency into collectible body art. Technicians utilize rotary machines with disposable cartridge-needle configurations in 3RL to 18M1 groupings, and the studio stocks both petroleum-based and vegan aftercare ointments for post-session wound management across varying skin sensitivities.