Drill four holes in the corners, along the outside. Measure to make sure the holes are uniformly spaced. Screw in four bun feet to keep the table steady and lift it off the floor when you flip it back over.
Cut a piece of plywood into a rectangular shape equal in size to the width of your table. Trim the legs at the other end to get rid of that canopy feel if you want. Adding wooden finials can be a decorative accent to spice up your design.
Cover it in the colors and designs you like most.