Do you mean like the Pop-up Grocery in Oakland? Next week.
Or the Underground Market in SF? The week after next.
Hon, I don't know about that. But if you are into a semi-guerilla food scene, check out the Beehive Market in Berkeley at the adult school on Boner street at Addison and University. Hey, I didn't name it that. All-green and local independents who can't afford to do the local high-end flea markets. I love that place almost more than I love Berkeley proper.
The Beehive Market
1701 San Pablo Ave, Berkeley, CA 94702