How about spices spiral runner ,
. Very quick easy and it can be done with 10' wedge if you don't have 9' .

Thanks everyone, you've given me some great ideas!

I have a round table and don't like a "runner". Would much rather have a topper and hexagon is perfect!

I have a round table in an informal dining area. I use quilts on it for table cloths all the time. When they get dirty I wash them. Granted I don't have small children and wouldn't do this with children. I use square quilt and often will round off the corners and/or scallop the edges to give it a more pleasing appearance on a round table. I like the weight of the quilted cloth as it drapes nicely and stays put. Lots of different patterns work and you can adjust the size by the size of the border.

On a round table, a runner that hangs over the edges will not lay flat against the sides of the table. I vote for a round or hexagon shaped runner.

I have only round tables and often put a square in the middle of it. Love the look. I agree that a runner that overhangs the edge wouldn't lay flat, so would rule that out.

I don't think an overhang on a round table would work very well because of the curve.

No overhang. I would choose a hexagon or round runner.

I would do a Swirling Stars - Card Trick table topper (free pattern). Here's one of mine (I've done 4).
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I love to make table runners, but I do not make them with an overhang. Simple because I hope they use them daily and the overhang looks too formal to me.