As part of its newest exhibition, “Tattoo,” The Field Museum is opening a working tattoo shop.

Members of the public will be able to get a natural-history themed tattoo live in the exhibition on select weekends throughout the run of the show, which ends April 30.

Visitors can choose from 42 different pieces of flash art (pre-drawn designs) created by local artists to get as tattoos. There are various tattooing time slots available to the public, on a first-come, first-served basis.

The exhibition features 170 objects telling the story of tattooing, including historical artifacts, intricate contemporary designs tattooed onto silicone models of the human body, and 14 objects from the museum’s own collection.

Visit FieldMuseum.org/discover/on-exhibit/tattoo/.