From the outside, the Feed Barn is just what it sounds like—a large empty warehouse that used to be a feed store. But for the last two years, it’s been home-away-from-home to a coterie of artists, makers, tinkerers and musicians, who this week throw open the doors in a spring open house for a showcase of dizzying creativity. Included among the festivities—with food provided by chef Mark Malicki—is the unveiling of the mighty Spruce Deuce, a large kinetic sculpture designed and built by the masterful David Farish and Skye Barnett. Live music and plenty of beer round out what’s easily the coolest thing happening in Rincon Valley on Saturday, May 12, at the Feed Barn. 55 Middle Rincon Road, Santa Rosa. Free. 4pm–midnight. No phone.