I started out with a trip to Home Depot. These 4x4 tiles were only 19 cents each! It doesn't get much cheaper than that! And I bought a package of 72 felt mounting circles for about Not too shabby! Good idea for splash back in kitchen!!!
Easy Crafts To Make and Sell - Beautiful Photo Coasters - Cool Homemade Craft Projects You Can Sell On Etsy, at Craft Fairs, Online and in Stores. Quick and Cheap DIY Ideas that Adults and Even Teens Can Make http://diyjoy.com/easy-crafts-to-make-and-sell