Since the toweling was red I decided to go with a "holiday" theme and made one for Christmas, Valentines and July 4th. I added about 4 inches of cotton fabric to each end of the red toweling. I attached it the same way you do the binding edge of a pillow case so all of the seams are on the inside. (If you don't know how to do this search on You Tube for making a pillowcase and there are tons of videos.) I then added some detail to one side of the towel. Along the edge of the seam where the toweling and cotton fabric are joined I added a decorative stitch. This is a simple detail and makes the seam lay flat.
Three holiday dish towels
On the Christmas towel I added a button wreath. (Use up that button stash I have!)
The July 4th towel I appliqued some simple stars. Applique is a great way to add some interest.
As I work on more projects for this craft fair I will share my "Pink Lemonade" opportunities. I always find that my creative juices flow better when I use what items are on hand rather than purchasing specific supplies for a project.