This 16-hour tattoo marathon raises money for the UC Davis Children’s Hospital Pediatric Intensive Care Unit. About 30 volunteer artists donate tattoos, piercings, jewelry, shirts, and tips to make this around-the-clock benefit happen. Presented by Wild Bill’s Tattoo in Roseville. Appointments are recommended but not necessary to avoid a long wait. Bring your tattoo ideas on paper to help save time. Visit www.WILD-BILLS.com for more information.