>If you’re planning to launch a startup aimed at becoming the next Twitter, here’s a way to outfit your pad with digital whiteboards and espresso machines: Buy some discarded from Twitter itself. > >The once-ascendant, now-beleaguered social media firm will be the subject of an online auction in January on hundreds of lots of furniture and equipment culled from its headquarters at 1355 Market St. in San Francisco. Individual items will start at $25 when bidding begins on Jan. 17 for the two-day event. Lots such as a dozen ergonomic Knoll chairs — which start at $300 for 12 — have higher opening prices. > >Some items seem designed for selfie posts on a rival platform, Instagram, such as the 41-inch-tall statue of Twitter’s iconic blue bird logo. There’s also an “@” symbol that’s 6-feet-3 inches tall — a “sculpture planter” that for now holds faux flora but “can be placed with real plants.” >...