Adding to the pool of Halloween cover shows — in which bands dress up and perform as other bands — LoBot Gallery (1800 Campbell St., Oakland) will start the night of mischief early with a show of if its own, from 2–6:30 p.m. on October 31. But unlike the others, this one is an all ages benefit for two local nonprofits focused on empowering young women to take down the patriarchy by having fun: Bay Area Girls Rock Camp (an organization that teaches female youth how to start bands together) and Skate Like a Girl SF (the local chapter of an organization that teaches female youth to skate and nurtures inclusive skate park culture). The lineup stars Skitch, an all-female skate punk band from Seattle who are part of the girl-centric Seattle skate crew, The Skate Witches. Aside from music, there will be a free skate lesson (and skating session, for those who are seasoned) from 2–3 p.m., as well as a gang of tablers, including Scream Queens, and food from the Lumpia Lady. And of course, everyone should arrive in costume.