The beauty of a project like this is it is super quick and looks great. Just cut 2 pieces of fabric the same size. Sew right sides together leaving an opening to turn. Turn and press and then topstitch to hold it all in place. And then you don't have to worry about finding the right size tablecloth for your table. Get a nice cloth in a basic color and change the runner for the occasion.
Another part of our family party tradition is the balloon centerpiece and the "You Are Special" plate. We received our first ones as a wedding present from one of our aunts. The base for the balloon centerpiece is a 3/4" board with 3 small holes drilled in it. Mine happens to be flower shaped, but you could just do a circle or square. Paint it how you'd like. Then you buy the sticks and balloon holders at any party supply place.
This year's Valentine's Day centerpiece.
This is what the balloon holder tip looks like. It will hold 3 balloons in each one and you attach it onto the end of the sticks. They are less than $.25 each for these and the sticks. So party on!!