You might choose a color theme using a towel set that you already own and then supplement it by purchasing additional towels in complimentary colors. Perhaps you'd like to display your bathroom towels. Here is a website on How to Display Bathroom Towels: http://suhow.info/53157-how-to-display-bathroom-towels.html Edwin P.S. But this is really a math homework forum. Go find a towel forum.