I always buy inexpensive cotton fabric for table cloths for events that I have hosted. You can get a good price if you buy a full bolt of fabric from Joann's using your 40% off coupon. Kona cotton would be a good one, Look for something without printing on the selvage. That way you don't have to finish the selvage edges. You can do a simple rolled hem on the other ends or cut them with pinking shears. Nobody notices that end. For the napkins just purchase your fabric Black fabric be it a print or a solid and cut squares and do a rolled hem or if you have access to a serger do a rolled hem on there. They make up very fast and look very nice. 44" wide fabric is good width for banquet tables.