I also created 6 drink coasters for a birthday gift. These coasters are fast and easy. You need 4 inches of batting for each coaster and two 4.5 inch blocks. You sew the blocks together with a scant 1/4 inch seam on three sides. Turn the blocks inside out. Carefully place the 4 inch batting piece in your coaster pocket. Turn in the raw edge of the top and bottom and press. Sew 1/8 inch seam around the outside of the pocket and quilt the coaster any way you want. I quilted each of my coasters differently. It's a quick, home-made gift!
Have a great week!