What I Used: clear flat marbles (You can get these at any craft store, and they are about $2 for 18 or so) scrapbook paper E6000 clear craft glue (You could also just use modge podge) 3/4″ magnets hot glue
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!!!