Totally fun round letter C and a base ball.  If I were doing this i would use a flint to put little stitch marks in the baseball, or alternatively the lines and stitches could be painted with red glass paint.  This is a fun pattern for a kids room or office, and I can make any letter you want.  The baseball part will change size depending upon which letter, and those letters like K and T and M and N will have some sort of crossing over the baseball part of the stained glass pattern.  Just send me an email