A couple of years ago, I came across a German beer garden table at Sonoma Country Antiques and snapped it up. Not long after, I bought another set for larger dinner parties (laid end-to-end, they create an outdoor banquet table). They sit outside all summer long, and when the rain hits, are easily stored flat. They're also great back-up tables for large indoor entertaining as they sit 10 people at 88 inches long.) We have also written about white beer garden tables, which can lighten up a space.
At one time, the tables were hard to find, but they seem to have caught on: Beer Garden Tables carries handmade Biergarten Tables (88 inches long) from Germany for $549.99; vintage ones can be found on 1st Dibs.