Back in early days of Nate Berkus' HSN collection he had an amazing rug. (there's one on his set now) It looked like this:
black and white zig zag table runner from MultiChic.com:
14" X 72", $36. Kind of adorable right? Pair it with crisp white dinner plates, and bright colored napkins and/or flowers and you've got yourself a modern and funky table top.
P.S. I did my homework. Leave it to Copy Cat Chic to find a similar zig zag rug for less! Check it out here!