I found this on Pinterest recently (from Pat on Color Me Quilty?'s blog) and while I've done this with pool noodles, I like this better. Granted, I haven't tried this one yet, but the pool noodles roll off the table unless you keep an eye on them. These won't, I'm sure. I figure since we never make a quilt more than a large couch size quilt, I should be able to get away with boards that are about 65" long, since I don't think I'll make any quilts wider than that.
Try it and let me know what you think!